Cisco IOS XE Software Security Hardening Release
Summary
| CVE | CVE-2026-20271 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-05 17:16:48 UTC |
| Updated | 2026-08-14 21:17:14 UTC |
| Description | As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20271 are related to insufficient control flow management issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-691. |
Risk And Classification
Primary CVSS: v3.1 8.6 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS: 0.002670000 probability, percentile 0.189380000 (date 2026-08-16)
Problem Types: CWE-691 | CWE-691 Insufficient Control Flow Management
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| 3.1 | CNA | CVSSV3_1 | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Cisco | Ios Xe | 16.10.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1c | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1d | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1e | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1f | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1g | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.1s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.10.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.11.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.11.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.11.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 16.11.1c | All | All | All |
| Operating System | Cisco | Ios Xe | 16.11.1s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.11.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.10 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.10a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.11 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.12 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.13 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.14 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.15 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.16 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1c | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1t | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1w | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1x | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1y | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1z | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1z1 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.1z2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.2a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.2s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.2t | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.3s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.4a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.5a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.5b | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.6 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.6a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.8 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.12.9 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.10 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.4a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.4s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.5a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.5b | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.6 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.7a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.8 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.6.9 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.7.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.7.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.7.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 16.7.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.7.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.7.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.1c | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.1d | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.1e | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.1s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.8.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.1c | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.1d | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.1s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.2a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.2s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.3h | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.3s | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.4c | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.5f | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.6 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.8 | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.8a | All | All | All |
| Operating System | Cisco | Ios Xe | 16.9.8b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.1.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.1.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.1.1s | All | All | All |
| Operating System | Cisco | Ios Xe | 17.1.1t | All | All | All |
| Operating System | Cisco | Ios Xe | 17.1.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.1.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.10.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.10.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.10.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.11.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.11.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1w | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1x | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1y | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1z | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1z1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1z2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1z3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1z4 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1z5 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.1z6 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.2a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.4a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.4b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.5a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.5b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.5c | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.5d | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.6 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.6a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.6b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.7a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.12.7b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.13.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.13.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.14.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.14.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.1w | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.1x | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.1y | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.2a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.2b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.2c | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.3b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.4a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.4b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.4c | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.4d | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.4s1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.5a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.15.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.16.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.16.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.17.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.1w | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.1x | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.1y | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.1z | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.18.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.2.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.2.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.2.1r | All | All | All |
| Operating System | Cisco | Ios Xe | 17.2.1v | All | All | All |
| Operating System | Cisco | Ios Xe | 17.2.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.2.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.1w | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.1x | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.1z | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.2a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.4a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.4b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.4c | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.5a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.5b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.6 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.8 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.3.8a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.4.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.4.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.4.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.4.1c | All | All | All |
| Operating System | Cisco | Ios Xe | 17.4.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.4.2a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.5.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.5.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.1x | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.1z | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.1z1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.5a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.6 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.6a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.8 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.6.8a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.7.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.7.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.7.1b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.7.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.8.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.8.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.1a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.1w | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.1x | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.1x1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.1y | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.1y1 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.2 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.2a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.3 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.3a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.4 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.4a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.5 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.5a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.5b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.5c | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.5d | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.5e | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.5f | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.6 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.6a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.7 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.7a | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.7b | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.8 | All | All | All |
| Operating System | Cisco | Ios Xe | 17.9.9 | All | All | All |
| Operating System | Cisco | Ios Xe | 26.1.1 | All | All | All |
| Operating System | Cisco | Ios Xe | 26.1.1a | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Cisco | Cisco IOS XE Software | affected 17.2.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1y | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.3s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.7.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1w | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.1d | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.4c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.7.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.2.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.8 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.2s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.1.1s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.11.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.7.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.11.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.1s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.3h | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.1c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.5a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1f | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.2.1v | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.1e | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1x | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.4s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.11.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.5b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.2s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.7.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1t | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.3s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.7a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.11.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.11.1s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.1.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.1.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1d | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.1.1t | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.2t | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.1s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1e | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1z | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.1c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.5f | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.4a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1g | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.2a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.8.1d | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.7.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.11.1c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.1s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.2.1r | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.1.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.10.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.2a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1s | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.7.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.2.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.8 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.1.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.2a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.1w | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.4.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.4a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.4.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.1x | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.9 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.2.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.5.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1z1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.5a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.4.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.1z | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.5b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.4.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.5.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.1z2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.6.10 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.4a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.7.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.1x | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.6a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.4c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.4.2a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.4b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.7.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.8.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.7.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.7.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.1w | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.5a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.1z | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.8 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.8.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.5b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.10.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.8a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.1z1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.10.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.1x | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.1y | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.9.8b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.2a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.9 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.11.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.10.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.1x1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.11.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.8 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.10 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1w | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.1y1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.13.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1x | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.14.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.4a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.3.8a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.6a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.5a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.10a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.13.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.2a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.11 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1y | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1z | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.5a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.14.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.5b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.8 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.12 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.17.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.16.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.1w | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.5c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1z1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.1b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.5d | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.1x | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.6a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1z2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.6.8a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.16.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.13 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.1y | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.5e | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.4a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.2a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.2c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.2b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1z3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.5f | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.4b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.5a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1z4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.8 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.7a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.4 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.5b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.3b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.14 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.1z | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.7b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.5c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 26.1.1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.4a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.2 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.1w | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.4b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.6a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.4c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.9.9 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.5d | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.15 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.4s1 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1z5 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.1x | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.1z6 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.4d | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.6b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.4.1c | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.5a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.1y | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.7a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.3 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.12.7b | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.18.3a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 26.1.1a | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 17.15.7 | Not specified |
| CNA | Cisco | Cisco IOS XE Software | affected 16.12.16 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Leve... | af854a3a-2127-422b-91ae-364da2661108 | www.cve.org | |
| sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-harden... | [email protected] | sec.cloudapps.cisco.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Exploits
CNA: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
There are currently no legacy QID mappings associated with this CVE.