CVE-2026-93518

HIGH 7.8CVE-2026-93518 · Published 28/10/2026 · updated 05/11/2026

In short

CVE-2026-93518 is a HIGH (CVSS 7.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.20%, higher than 10.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server.

References

gitlab.freedesktop.org/xorg/xserver/-/commit/89101a6c6618f543d7502f2077c7ef1a507af256

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