VULNERABILITY INTELLIGENCE

CVE-2025-26596

CVSS score7.8 HIGH
EPSS probability0.44%
CISA KEVNot currently listed
Published2025-02-25
Last modified2026-06-29
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.

Weakness classification

  • CWE-787: Out-of-bounds Write

Primary references