CVE-2026-109091 - Vulnerability Details - OpenCVE

A buffer overflow in handling EDID Display-Range descriptors in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by malicious monitors to crash the x server or execute cote.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
X.org Subscribe	Xorg-x11-server Subscribe Xwayland Subscribe

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://gitlab.freedesktop.org/xorg/xserver/-/commit/56e4ab6e8d94222480c8d7a28f530334059e3ab7
https://gitlab.freedesktop.org/xorg/xserver/-/commit/d88f0f7fdb2834c24feca63c0af5f46a57f4a04c

History

Fri, 13 Nov 2026 15:30:00 +0000

Type	Values Removed	Values Added
Description		A buffer overflow in handling EDID Display-Range descriptors in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by malicious monitors to crash the x server or execute cote.
Title		X.Org Server EDID DS_RANGES Out-Of-Bounds Write
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		https://gitlab.freedesktop.org/xorg/xserver/-/commit/56e4ab6e8d94222480c8d7a28f530334059e3ab7 https://gitlab.freedesktop.org/xorg/xserver/-/commit/d88f0f7fdb2834c24feca63c0af5f46a57f4a04c
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'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: suse

Published: 2026-11-13T15:19:47.728Z

Updated: 2026-11-13T15:20:46.237Z

Reserved: 2026-10-12T06:41:23.778Z

Link: CVE-2026-109091

Vulnrichment

No data.

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-122

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