CVE-2025-26596
HIGH7.8EPSS 0.03%Published: 2/25/2025Modified: 4/28/2026
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.
Affected packages (2)
- Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u15
- Debian/xwaylandfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |