CVE-2026-20304 — Cisco Catalyst SD-WAN Security Hardening Release - Access Control Vulnerabilities
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 revie…
Published: 2026-08-05 · CVSS: 9.9 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7