Use-After-Free Vulnerability in X.Org X Server and Xwayland
CVE-2025-62229

7.3HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
30 October 2025

What is CVE-2025-62229?

A flaw exists in the X.Org X server and Xwayland, specifically related to improper error handling during the processing of X11 Present extension notifications. This vulnerability can result in dangling pointers, which create a use-after-free condition, posing risks that include memory corruption or unexpected crashes. Such occurrences can potentially allow an attacker to execute arbitrary code or trigger a denial of service, compromising system stability and security.

References

https://access.redhat.com/security/cve/CVE-2025-62229
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2402649
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Jan-Niklas Sohn (Trend Micro Zero Day Initiative) for reporting this issue.
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CVE-2025-62229 : Use-After-Free Vulnerability in X.Org X Server and Xwayland