CVE-2026-20278: Cisco IOS XR Software Security Hardening Release: September 2026
Published Sep 2, 2026
·Updated
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20278 are related to improper neutralization issues that are grouped under the Common Weakness Enumeration (CWE) CWE-707.
Affected Software
1 affected component
Cisco Cisco IOS XR Software Security Hardening Release
Event History
Sep 2, 2026
CVE Published
via MITRE·04:14 PM
Data Sourced
via MITRE·04:14 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:17 PM
DescriptionSeverityWeakness