CVE-1999-1383: (1) bash before 1.14.7, and (2) tcsh 6.05 allow local users to gain privileges via directory names that con...

Security readout for executives and security teams

This is an old local privilege-risk issue in bash and tcsh. A crafted directory name containing shell metacharacters could make vulnerable shells run unintended commands while drawing the command prompt. Business urgency is mainly for legacy Unix/Linux systems still running very old shells or preserved appliances. Exposure is likely limited to legacy systems, embedded appliances, lab images, or historical environments using bash before 1.14.7 or tcsh 6.05. Modern supported operating systems are unlikely to ship these versions, but asset inventories should verify old shells and privileged interactive accounts. Treat this as a legacy exposure cleanup item, not an internet-scale emergency. Prioritize environments with old Unix systems, shared shells, local user access, or administrative workflows that traverse user-controlled directories. Mitigation focus: Replace affected bash and tcsh versions with supported vendor-maintained packages.; For bash, ensure versions are not earlier than 1.14.7.; For tcsh 6.05, check vendor guidance for fixed or supported versions..

Prepared

Jul 1, 2026, 08:44 UTC (UTC+00:00)

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