Description
A buffer overread caused by an integer-overflow in Proc/SProcXResQueryClientIds in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by attackers on authenticated X clients to crash the server or leak out information.
Published: 2026-11-13
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 13 Nov 2026 10:45:00 +0000

Type Values Removed Values Added
Description A buffer overread caused by an integer-overflow in Proc/SProcXResQueryClientIds in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by attackers on authenticated X clients to crash the server or leak out information.
Title X.Org Server XRes QueryClientIds Request Size Overflow
First Time appeared X.org
X.org xorg-x11-server
X.org xwayland
Weaknesses CWE-126
CPEs cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Vendors & Products X.org
X.org xorg-x11-server
X.org xwayland
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

X.org Xorg-x11-server Xwayland
cve-icon MITRE

Status: PUBLISHED

Assigner: suse

Published:

Updated: 2026-11-13T10:27:48.418Z

Reserved: 2026-10-13T09:50:30.690Z

Link: CVE-2026-109904

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-13T11:17:15.677

Modified: 2026-11-13T11:17:15.783

Link: CVE-2026-109904

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses