CVE-2026-4367

medium

Description

A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the `xpmNextWord()` function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.

References

https://seclists.org/oss-sec/2026/q2/192

https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/5448e1bd

https://bugzilla.redhat.com/show_bug.cgi?id=2448984

https://access.redhat.com/security/cve/CVE-2026-4367

http://www.openwall.com/lists/oss-security/2026/04/21/3

Details

Source: Mitre, NVD

Published: 2026-06-16

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 4.6

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

Severity: Medium

CVSS v3

Base Score: 6.3

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

Severity: Medium

EPSS

EPSS: 0.00138