CVE-2026-76453

EUVD-2026-94453

07.10.2026, 17:16

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.8 HIGH	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 24.91%

Common Weakness Enumeration

CWE-707 - Improper Neutralization
The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.

Vulnerability Media Exposure

[GERMAN] Cisco Nexus und Cisco NX-OS: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Cisco Nexus und Cisco NX-OS ausnutzen, um beliebigen Code auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen und zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.
Published: 2026-10-07T22:00:00+00:00

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR