CVE-2016-7952: X.org libXtst before 1.2.3 allows remote X servers to cause a denial of service (infinite loop) via a reply...

Security readout for executives and security teams

This is a denial-of-service issue in X.org libXtst before 1.2.3. A malicious or compromised remote X server can send malformed replies that make an affected client enter an infinite loop. The sources do not indicate data theft, code execution, or active exploitation. Exposure is most likely on Unix/Linux systems with libXtst before 1.2.3, especially where graphical clients connect to remote or forwarded X servers. Systems that do not use X11 clients or remote X display workflows are less likely to be exposed. Treat as normal-priority patching unless the organization relies heavily on remote X11 workflows. The known impact is availability loss, not compromise, and active exploitation is not shown in the supplied sources. Mitigation focus: Upgrade libXtst to version 1.2.3 or a vendor-backported fixed package.; Apply relevant distribution updates, including Fedora advisories where applicable.; Review vendor guidance for exact fixed package versions in your environment..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

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