VDB
DEBIAN-CVE-2025-26596
DEBIAN-CVE-2025-26596
PUBLISHED
CVSS 7.800000190734863 HIGH
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.
Risk Scores
CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | xwayland | 0, 0 |
| Debian:13 | xorg-server | 0, 0 |
| Debian:14 | xwayland | 0, 0 |
| Debian:14 | xorg-server | 0, 0 |
| Debian:12 | xwayland | 23.2.1-1, 23.2.2-1, 23.2.3-1 |
| Debian:11 | xorg-server | 1.20.11-1, 2:1.20.11-1, 2:1.20.11-1+deb11u1 |
| Debian:12 | xorg-server | 0, 2:21.1.7-3, 2:21.1.7-3+deb12u1 |
Timeline
- Feb 25, 2025 CVE Published
- Apr 28, 2026 CVE Updated