CVE-2026-20273 — Cisco IOS XE Software Security Hardening Release
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security revie…
Published: 2026-08-05 · CVSS: 8.6 · CVSS 3.1
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software 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-2026-20273 are related to improper input validation issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7