CVE-2026-76453: Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Neutralization Vulnerabilities
Published Oct 7, 2026
·Updated
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS 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-2026-76453 are related to improper neutralization issues that are grouped under the Common Weakness Enumeration (CWE) CWE-707.
Affected Software
1 affected component
Cisco NX-OS Software
Event History
Oct 7, 2026
CVE Published
via MITRE·04:12 PM
Data Sourced
via MITRE·04:12 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:16 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Does exploitation require an authenticated attacker?
Yes. The CVSS vector indicates that an attacker needs low-level privileges before exploitation.
2
Can the issue be exploited remotely without user interaction?
The CVSS vector indicates network-based attack access, low attack complexity, and no user interaction requirement.
3
What could a successful exploit allow?
The CVSS metrics rate confidentiality, integrity, and availability impact as high.