CVE-2025-62231EPSS p20.0%

CVE-2025-62231CVE-2025-62231

x.org / x_server

Description

A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.

Scoring

CVSS 7.3 ()
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
EPSS0.28% probability of exploitation · percentile 20.0% · 2026-08-13T12:03:51Z
Last modified2026-07-01
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.