CVE-2026-20133
Summary
| CVE | CVE-2026-20133 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-02-25 17:25:30 UTC |
| Updated | 2026-04-22 16:56:21 UTC |
| Description | A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could exploit this vulnerability by accessing the vshell of an affected system. A successful exploit could allow the attacker to read sensitive information on the underlying operating system. |
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:H/I:N/A:N
EPSS: 0.012720000 probability, percentile 0.796570000 (date 2026-05-11)
CISA KEV: Listed on 2026-04-20; due 2026-04-23; ransomware use Unknown
Problem Types: CWE-200 | CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | CVSSV3_1 | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA Known Exploited Vulnerability
| Vendor | Cisco |
|---|---|
| Product | Catalyst SD-WAN Manager |
| Name | Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability |
| Required Action | Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available. |
| Notes | CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20133 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Cisco | Catalyst Sd-wan Manager | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 17.2.6 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 17.2.7 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 17.2.8 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 17.2.9 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 17.2.10 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 17.2.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 17.2.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.7 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.8 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.6.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.3.0 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.0.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.302 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.303 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.0 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.4.6 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.0 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.097 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.099 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.31 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.929 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.2.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.1.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.1.12 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.1.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.1.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.3.0 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 19.1.0 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 18.2.0 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.2.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.4.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.6 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.7 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.7.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.4.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.5.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.7.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.3.8 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.4.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.4.1.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.4.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.4.2.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.4.2.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.4.2.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.5.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.5.1.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.5.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.2.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.2.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.1.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.4.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3.0.45 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3.0.46 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3.0.47 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.3.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.4.0.21 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.1.10 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.1.11 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.1.7 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.1.9 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.2.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.2.8 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.5.1.13 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.6 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.7 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.6.8 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.7.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.7.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.7.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.8.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.2.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.2.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.0.12 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.0.16 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.0.17 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.0.18 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.0.20 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.0.21 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.2_LI_Images | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.4_LI_Images | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.3.0.23 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.5.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.5.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.6 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.5.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.7 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.7.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.9.8 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.10.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.10.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.10.1.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.11.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.11.1.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.11.1.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.1_LI_Images | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.5.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.5.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.6 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.13.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.14.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.16.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.18.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.18.2 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.cisa.gov/known-exploited-vulnerabilities-catalog | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | www.cisa.gov | US Government Resource |
| sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-... | [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 |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Exploits
CNA: In April 2026, the Cisco PSIRT became aware of active exploitation of the vulnerability that is described in CVE-2026-20133. Cisco strongly recommends that customers upgrade to a fixed software release to remediate these vulnerabilities.
There are currently no legacy QID mappings associated with this CVE.