What’s Vulnerable › Vulnerabilities

CVE-2026-20133: Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2026-04-20
• EPSS: 31.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-25 · updated 2026-06-17
• Weakness: CWE-200

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.

Affected products

• Cisco Catalyst SD-WAN Manager: before 20.9.8.2; from 20.10 before 20.12.5.3; from 20.13 before 20.15.4.2; from 20.16 before 20.18.2.1; 20.12.6 — fixed in 20.12.5.3, 20.15.4.2, 20.18.2.1, 20.9.8.2

How to fix

Upgrade to a fixed version: Cisco Catalyst SD-WAN Manager 20.12.5.3, 20.15.4.2, 20.18.2.1, 20.9.8.2. Check the vendor advisory for mitigations.

References

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20133

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