Description
A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in the X server context.
Published: 2026-10-28
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 28 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Wed, 28 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in the X server context.
Title glamor: size tmp_bits buffer for source coordinate range in upload_boxes X.Org Server Glamor CopyArea Heap Buffer Overflow
First Time appeared X.org
X.org xorg-x11-server
X.org xwayland
Weaknesses CWE-122
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 cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Thu, 08 Oct 2026 15:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Thu, 08 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title glamor: size tmp_bits buffer for source coordinate range in upload_boxes
References
Metrics threat_severity

None

threat_severity

Important


Subscriptions

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

Status: PUBLISHED

Assigner: suse

Published:

Updated: 2026-10-28T16:03:56.072Z

Reserved: 2026-09-18T08:46:56.692Z

Link: CVE-2026-93522

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-28T16:17:10.183

Modified: 2026-10-28T16:17:10.183

Link: CVE-2026-93522

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-07T12:00:00Z

Links: CVE-2026-93522 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T18:15:14Z

Weaknesses