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CVE-2025-26594

X.org: xwayland: use-after-free of the root cursor

Published: Feb 25, 2025Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-416
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.4%
Top 73.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-416

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
РОСА КобальтАО «НТЦ ИТ РОСА»
On-prem
Operating Systems / linux-distro
РОСА ХРОМАО «НТЦ ИТ РОСА»
On-prem
Operating Systems / linux-distro
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ао «нтц ит роса»commercialRUOperating Systems
and 26 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://gitlab.freedesktop.org/xorg/xserver/-/commit/01642f263f12becf803b19be4db95a4a83f94acc
gitlab.freedesktop.org
https://gitlab.freedesktop.org/xorg/xserver/-/commit/b0a09ba6020147961acc62d9c73d807b4cccd9f7
gitlab.freedesktop.org
https://lists.x.org/archives/xorg-announce/2025-February/003584.html
lists.x.org
and 32 more references View all →

Timeline

Published
Feb 25, 2025
Last Updated
Nov 3, 2025

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