CVE-2025-62230
Xorg: xwayland: use-after-free in xkb client resource removal
Description
A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.
INFO
Published Date :
Oct. 30, 2025, 6:15 a.m.
Last Modified :
Nov. 6, 2025, 2:15 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Ensure all client resources are detached before freeing data structures.
- Implement robust error handling for client disconnections.
- Review Xkb extension code for resource management issues.
- Apply security patches from the X.Org Foundation.
Public PoC/Exploit Available at Github
CVE-2025-62230 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-62230.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-62230 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-62230
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Ruby Shell Python
DSA and DLA for Debian last 14 days
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-62230 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-62230 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Nov. 06, 2025
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2025:19909 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 04, 2025
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2025/10/28/7 -
CVE Modified by [email protected]
Nov. 04, 2025
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2025:19623 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2025/10/msg00033.html -
CVE Modified by [email protected]
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2025:19489 -
CVE Modified by [email protected]
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2025:19432 Added Reference https://access.redhat.com/errata/RHSA-2025:19433 Added Reference https://access.redhat.com/errata/RHSA-2025:19435 -
CVE Modified by [email protected]
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2025:19434 -
New CVE Received by [email protected]
Oct. 30, 2025
Action Type Old Value New Value Added Description A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H Added CWE CWE-416 Added Reference https://access.redhat.com/security/cve/CVE-2025-62230 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2402653