CVE-2026-50264

Published: Giu 05, 2026 Last Modified: Giu 05, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
https://access.redhat.com/security/cve/CVE-2026-50264
https://access.redhat.com/security/cve/CVE-2026-50264
https://bugzilla.redhat.com/show_bug.cgi?id=2485389
https://bugzilla.redhat.com/show_bug.cgi?id=2485389
https://gitlab.freedesktop.org/xorg/xserver/-/commit/339c27…
https://gitlab.freedesktop.org/xorg/xserver/-/commit/339c279514326134b0878fc23c…
https://lists.x.org/archives/xorg-announce/2026-June/003702…
https://lists.x.org/archives/xorg-announce/2026-June/003702.html
https://redhat.atlassian.net/browse/PSIRTSUPT-16950
https://redhat.atlassian.net/browse/PSIRTSUPT-16950