CVE-2026-20269: 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 review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20269 are related to issues with improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20269?
The severity of CVE-2026-20269 is high with a score of 8.6.
What impact does CVE-2026-20269 have on Cisco IOS XE Software?
CVE-2026-20269 can lead to denial of service due to vulnerabilities addressed in the Cisco IOS XE Software Security Hardening Release.
How do I fix CVE-2026-20269?
To fix CVE-2026-20269, you should apply the latest Cisco IOS XE Software Security Hardening Release.
When was CVE-2026-20269 published?
CVE-2026-20269 was published on August 5, 2026.
What types of vulnerabilities are addressed in CVE-2026-20269?
CVE-2026-20269 addresses multiple vulnerabilities discovered internally in Cisco IOS XE Software.