Cisco Secure Workload Software Security Hardening Release August 2026 - Buffer Management Vulnerabilities
Summary
| CVE | CVE-2026-20319 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-19 17:18:40 UTC |
| Updated | 2026-08-20 13:01:19 UTC |
| Description | As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20319 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.002790000 probability, percentile 0.204740000 (date 2026-08-22)
Problem Types: CWE-119 | CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | CVSSV3_1 | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Cisco | Cisco Secure Workload | affected 2.2.1.41 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.2.1.18 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.50 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.28 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.34 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.3.1.45 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.3.1.41 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.28 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.59 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.0.2.20 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.1.1.33 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.1.1.29 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.2.1.28 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.35 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.65 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.67 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.0.1.34 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.3.1.49 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.2.1.39 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.19 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.23 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.61 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.54 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.17 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.33 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.1 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.3.1.53 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.20 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.30 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.16 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.55 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.6 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.3.1.50 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.3.1.52 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.2.1.19 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.2.1.35 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.53 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.1.1.70 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.2.1.20 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.2 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 1.103.1.12 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.3.1.51 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.42 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.1 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.12 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.1.1.31 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.23 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.53 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.14 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.2 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.20 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.35 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 2.2.1.34 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 1.102.21 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.3.2.5 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.31 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.6.1.5 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.2.1.31 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.5.1.37 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.4.1.40 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.6.1.17 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.6.1.21 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.2.1.32 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.2.1.33 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.6.1.35 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.6.1.36 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.7.1.5 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.6.1.47 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.7.1.22 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.6.1.52 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.7.1.39 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.8.1.1 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.7.1.51 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.8.1.19 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.8.1.36 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.7.1.59 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.8.1.39 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.1 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.10 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.24 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.25 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.28 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.38 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.8.1.53 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.52 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.1.1 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.64 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.2.11 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.66 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.3.19 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.9.1.69 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.4.8 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.5.6 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 4.0.1.1 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 4.0.2.4 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 4.0.2.5 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.6.3 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.7.4 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 4.0.3.13 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 4.0.3.17 | Not specified |
| CNA | Cisco | Cisco Secure Workload | affected 3.10.8.3 | 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 | |
| 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.