A critical vulnerability tracked as CVE-2026-76465 affects the MPLS OAM feature in Cisco NX-OS on Nexus 3000 and 9000 Series Switches. The flaw allows unauthenticated remote attackers to execute arbitrary code with root privileges or trigger denial-of-service conditions.
Successful exploitation grants root-level code execution.
The issue requires no user interaction or prior authentication.
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Cisco has released NX-OS hardening updates covering CVE-2026-76455, a group of improper access control issues (CWE-284) scored 9.8 critical. Cisco found the issues in an internal review and says they are not known to be exploited.
Cisco has released hardening updates for Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), to fix CVE-2026-76482, a critical vulnerability with a CVSS score of 10. The flaw stems from improper input verification and was identified during an internal security review.
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