Posting Date: 2026/10/15

【Vulnerability Alert】Cisco Nexus 3000 and 9000 series switches have 4 critical security vulnerabilities

  • Subject: 【Vulnerability Alert】Cisco Nexus 3000 and 9000 series switches have 4 critical security vulnerabilities


  • Description:
    • Forwarding TWCERTCC Security Information Advisory TWCERTCC-200-202610-00000013
    • Cisco has released critical security vulnerability advisories for the Nexus 3000 and 9000 series switches (CVE-2026-76465, CVE-2026-76485, CVE-2026-76486, CVE-2026-76501; all with CVSS scores of 9.8). These vulnerabilities may allow an unauthenticated remote attacker to execute code with root privileges or cause a DoS attack on affected devices.
  • Affected Platforms:
    • 【CVE-2026-76465】 Nexus 3000 Series Switches Nexus 9000 Series Switches in standalone NX-OS mode
    • 【CVE-2026-76485, CVE-2026-76486, CVE-2026-76501】 Nexus 3000 Series Switches and Nexus 9000 Series Switches with NGOAM enabled and its configuration function set; see the official website for details
  • Recommended Actions:
    • Patch according to the solution released on the official website
  • References:
    1. https://www.twcert.org.tw/tw/cp-169-11276-c3ddb-1.html

Computer and Communication Center
Network System Division