CVE-2025-26601
Xorg: xwayland: use-after-free in syncinittrigger()
Description
A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Red Hat Inc.
commercial·USaka Red Hat, redhat
Novell Inc.
commercial·US
Сообщество свободного программного обеспечения
oss-projectaka fsf
АО «НТЦ ИТ РОСА»
commercial·RU
x.org
oss-project·US
ООО «Ред Софт»
commercial·RUaka red soft
and 22 more affected products View all →
Exploitability
Official Patch Available
Workaround Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://www.comss.ru/page.php?id=15830&ysclid=m7oezo4e4q284242167
comss.ru
https://security-tracker.debian.org/tracker/CVE-2025-26601
security-tracker.debian.org
https://access.redhat.com/security/cve/CVE-2025-26601
access.redhat.com
and 32 more references View all →
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