CVE-2026-76455

9.8 CRITICAL

Published 2026-10-07 · Updated 2026-10-08

AI risk analysis

Summary: The flaw involves improper access control issues, allowing unauthorized access to sensitive data and functionalities.
Exploitability: Exploitation is moderately difficult requiring specific access conditions and knowledge of the internal system.
Blast radius: If exploited, the impact could be severe, leading to data compromise and potential system control.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to the fixed version 2.590 or later.

auth-bypassdata-exposureinternal-vuln

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

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-2026-76455 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-284

All references

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

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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