{"id":"CVE-2026-76455","title":"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","summary":"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…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-284"],"vendor":"Cisco","product":"Cisco NX-OS Software","affected":["nx-os_software 8.2(5)","nx-os_software 7.3(5)D1(1)","nx-os_software 8.4(2)","nx-os_software 8.4(3)","nx-os_software 9.2(3)","nx-os_software 8.2(1)","nx-os_software 7.3(1)D1(1)","nx-os_software 9.2(2v)","nx-os_software 7.3(0)D1(1)","nx-os_software 7.3(4)D1(1)","nx-os_software 9.2(1)","nx-os_software 9.2(2t)","nx-os_software 9.2(3y)","nx-os_software 9.3(2)","nx-os_software 7.3(1)DY(1)","nx-os_software 8.1(1)","nx-os_software 8.2(2)","nx-os_software 8.3(2)","nx-os_software 7.3(2)D1(3a)","nx-os_software 9.2(4)","nx-os_software 8.1(2)","nx-os_software 7.3(3)D1(1)","nx-os_software 8.2(3)","nx-os_software 8.3(1)","nx-os_software 8.4(1)","nx-os_software 8.1(1b)","nx-os_software 7.3(0)DX(1)","nx-os_software 7.3(2)D1(1)","nx-os_software 9.3(1)","nx-os_software 7.3(2)D1(2)","nx-os_software 8.2(4)","nx-os_software 7.3(0)DY(1)","nx-os_software 9.3(1z)","nx-os_software 9.2(2)","nx-os_software 8.1(2a)","nx-os_software 7.3(2)D1(3)","nx-os_software 8.1(1a)","nx-os_software 8.4(1a)","nx-os_software 9.3(3)","nx-os_software 7.3(2)D1(1d)","nx-os_software 9.3(4)","nx-os_software 7.3(6)D1(1)","nx-os_software 8.2(6)","nx-os_software 9.3(5)","nx-os_software 8.4(2a)","nx-os_software 8.4(2b)","nx-os_software 8.5(1)","nx-os_software 9.3(6)","nx-os_software 8.4(4)","nx-os_software 7.3(7)D1(1)"],"published":"2026-10-07","updated":"2026-10-07","sourceUpdated":"2026-10-07T17:16:57.520","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76455","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR","label":"psirt@cisco.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-07T16:38:22.250Z","slug":"CVE-2026-76455","body":"## Overview\n\nAs 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.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76455 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}