CVE-2012-4131: Directory traversal vulnerability in tar in Cisco NX-OS allows local users to access arbitrary files via cr...

Security readout for executives and security teams

CVE-2012-4131 is a Cisco NX-OS issue where a local user could use the tar utility to access files outside the intended path. Business risk depends on whether untrusted or low-privileged users have local access to affected NX-OS systems. Potential exposure is Cisco NX-OS systems where local users can run the affected tar functionality. The provided data does not name affected platforms, releases, or CPEs, so exposure must be confirmed against Cisco guidance. Treat this as an exposure-confirmation task unless Cisco guidance shows affected critical devices. Priority rises where many users have local device access or where NX-OS devices protect sensitive network segments. Mitigation focus: Check Cisco's advisory for affected NX-OS releases and fixed software guidance.; Limit local access to NX-OS devices to trusted administrators only.; Review AAA roles and privileges for users with device CLI access..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

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