Dashboard / CVE-2026-109903

CVE-2026-109903

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-11-13 Modified: 2026-11-13 First seen: 2026-11-13 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

Description

A buffer overread caused by casting a negative integer to CARD32 in XvQueryImageAttributes in X.Org X Server before 21.1.26 and xwayland before 24.1.15 could be used to causes crashes by authenticated X clients.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
X.Org xorg-x11-server 0 < 21.1.26
X.Org xwayland 0 < 24.1.15

References & Advisories (1)

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.18%
Raw Score 0.001840
Percentile 8.0%
Date 2026-11-13

Intelligence Sources

mitre ref →
nvd ref →

External Links