CVE-2013-1993: Multiple integer overflows in X.org libGLX in Mesa 9.1.1 and earlier allow X servers to trigger allocation...

Security readout for executives and security teams

CVE-2013-1993 is a memory-safety issue in X.org libGLX in Mesa 9.1.1 and earlier. A malicious or compromised X server could cause vulnerable client-side code to allocate too little memory, leading to a buffer overflow. This mainly matters for legacy Linux or Unix graphical environments still using affected Mesa packages. Exposure is most likely on unsupported or unpatched systems with Mesa 9.1.1 or earlier libGLX packages, especially where X clients connect to untrusted, remote, or compromised X servers. Modern systems are unlikely to be exposed if vendor Mesa updates from 2013 were applied. Treat this as a legacy exposure cleanup item unless vulnerable X11 desktops or remote X workflows remain in production. There is no source evidence of active exploitation, but affected systems are old enough to indicate broader support and patch-management risk. Mitigation focus: Update Mesa/libGLX packages using the applicable Linux distribution advisory.; Retire or isolate systems still running Mesa 9.1.1 or earlier.; Avoid connecting graphical clients to untrusted X servers until patched..

Prepared

Jun 14, 2026, 22:07 UTC (UTC+00:00)

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