CVE-2026-109089

high

Description

A buffer overflow when handling DEVICE_RESOLUTION in libXi before 1.8.4 could overflow a heap, triggered by a malicious X server.

References

https://gitlab.freedesktop.org/xorg/lib/libxi/-/commit/f7836d0a0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-111138

Details

Source: Mitre, NVD

Published: 2026-10-27

Updated: 2026-11-04

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00258