Expired Pointer Dereference Affecting xorg-server package, versions [,21.1.24)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-XORGSERVER-17906416
- published9 Jul 2026
- disclosed8 Jul 2026
- creditUnknown
Introduced: 8 Jul 2026
CVE-2026-56000 (opens in a new tab)How to fix?
Upgrade xorg-server to version 21.1.24 or higher.
Overview
Affected versions of this package are vulnerable to Expired Pointer Dereference through the CommonMakeCurrent process in the GLX dispatch layer. An attacker can cause the server to crash and disrupt the graphical environment by sending a sequence of crafted X11 requests.