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: n/a
KEV: No
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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

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses