CVE-2026-76455
CRITICAL
CVSS 9.8
Published: 2026-10-07
Modified: 2026-10-08
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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.
Quick Facts
| CVE ID | CVE-2026-76455 |
| CVSS Score | 9.8 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published | 2026-10-07 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |