CVE-2026-20268: 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-2026-20268 are related to issues with improper restriction of operations within the bounds of a memory buffer that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-119.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20268?
The severity of CVE-2026-20268 is high, with a score of 8.6.
What vulnerabilities does CVE-2026-20268 address?
CVE-2026-20268 addresses multiple internally discovered vulnerabilities in Cisco IOS XE Software.
How do I fix CVE-2026-20268?
To fix CVE-2026-20268, you should implement the Cisco IOS XE Software Security Hardening Release.
What is the risk associated with CVE-2026-20268?
CVE-2026-20268 has a risk score of 49, indicating a significant threat level.
What type of vulnerability is CVE-2026-20268 classified as?
CVE-2026-20268 is classified as a buffer overflow vulnerability.