CVE-2026-93522
Published:October 28, 2026
Updated:November 04, 2026
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.
Affected Packages
xwayland (CONDA):
Affected version(s) =24.1.13 <24.1.14Fix Suggestion:
Update to version 24.1.14https://gitlab.freedesktop.org/xorg/xserver.git (SCM_GIT):
Affected version(s) >=xorg-server-26.0.99.901 <xorg-server-26.0.99.903Fix Suggestion:
Update to version xorg-server-26.0.99.903https://gitlab.freedesktop.org/xorg/xserver.git (SCM_GIT):
Affected version(s) >=xwayland-26.0.99.901 <xwayland-26.0.99.903Fix Suggestion:
Update to version xwayland-26.0.99.903https://gitlab.freedesktop.org/xorg/xserver.git (SCM_GIT):
Affected version(s) >=xwayland-23.1.99.901 <xwayland-24.1.14 || >=xwayland-24.0.99.901 <xwayland-24.1.14Fix Suggestion:
Update to version xwayland-24.1.14Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Heap-based Buffer Overflow
EPSS
Base Score:
0.20