VULNERABILITY INTELLIGENCE
CVE-2026-20304
CVSS score9.9 CRITICAL
EPSS probability0.42%
CISA KEVNot currently listed
Published2026-08-05
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20304 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.
Weakness classification
- psirt@cisco.com: CWE-284