CVE-2012-4076: Cisco NX-OS allows local users to gain privileges and execute arbitrary commands via shell metacharacters i...

Security readout for executives and security teams

CVE-2012-4076 is a Cisco NX-OS local privilege issue. A user who already has local access could gain higher privileges and run arbitrary commands through improper handling of shell metacharacters. The bundle does not identify affected versions, CVSS, or active exploitation. Exposure is limited to environments running Cisco NX-OS where local users can access affected commands. Risk is higher on shared network devices, environments with contractor or broad admin access, and systems lacking tight AAA controls. Treat this as a targeted network infrastructure risk, not a broad internet-facing emergency. Prioritize validation for critical Cisco NX-OS devices and environments with many local administrators or shared access. Mitigation focus: Review the Cisco security notice for affected and fixed NX-OS releases.; Upgrade affected NX-OS systems according to Cisco guidance.; Restrict local and CLI access to trusted administrators only..

Prepared

Jun 14, 2026, 15:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.