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Vulnerability · Published Oct 30, 2025 · Assigned by redhat

CVE-2025-62230Xorg: xwayland: use-after-free in xkb client resource removal

High 7.3

In plain English

A high-severity use-after-free in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.3%top 79.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8tigervnc1.15.0-8.el8_10ALSA-2025:19909
AlmaLinux:9tigervnc1.14.1-9.el9_6ALSA-2025:19489
AlmaLinux:9tigervnc1.15.0-6.el9_7ALSA-2025:20958
AlmaLinux:8tigervnc-icons1.15.0-8.el8_10ALSA-2025:19909
AlmaLinux:9tigervnc-icons1.14.1-9.el9_6ALSA-2025:19489
AlmaLinux:9tigervnc-icons1.15.0-6.el9_7ALSA-2025:20958
AlmaLinux:8tigervnc-license1.15.0-8.el8_10ALSA-2025:19909
AlmaLinux:9tigervnc-license1.14.1-9.el9_6ALSA-2025:19489
AlmaLinux:9tigervnc-license1.15.0-6.el9_7ALSA-2025:20958
AlmaLinux:8tigervnc-selinux1.15.0-8.el8_10ALSA-2025:19909
AlmaLinux:9tigervnc-selinux1.14.1-9.el9_6ALSA-2025:19489
AlmaLinux:9tigervnc-selinux1.15.0-6.el9_7ALSA-2025:20958
AlmaLinux:8tigervnc-server1.15.0-8.el8_10ALSA-2025:19909
AlmaLinux:9tigervnc-server1.15.0-6.el9_7ALSA-2025:20958
AlmaLinux:9tigervnc-server1.14.1-9.el9_6ALSA-2025:19489
AlmaLinux:8tigervnc-server-minimal1.15.0-8.el8_10ALSA-2025:19909
AlmaLinux:9tigervnc-server-minimal1.15.0-6.el9_7ALSA-2025:20958
AlmaLinux:9tigervnc-server-minimal1.14.1-9.el9_6ALSA-2025:19489
AlmaLinux:8tigervnc-server-module1.15.0-8.el8_10ALSA-2025:19909
AlmaLinux:9tigervnc-server-module1.15.0-6.el9_7ALSA-2025:20958
AlmaLinux:9tigervnc-server-module1.14.1-9.el9_6ALSA-2025:19489
AlmaLinux:8xorg-x11-server-Xdmx1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-Xdmx1.20.11-32.el9_7ALSA-2025:20961
AlmaLinux:8xorg-x11-server-Xephyr1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-Xephyr1.20.11-32.el9_7ALSA-2025:20961
AlmaLinux:8xorg-x11-server-Xnest1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-Xnest1.20.11-32.el9_7ALSA-2025:20961
AlmaLinux:8xorg-x11-server-Xorg1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-Xorg1.20.11-32.el9_7ALSA-2025:20961
AlmaLinux:8xorg-x11-server-Xvfb1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-Xvfb1.20.11-32.el9_7ALSA-2025:20961
AlmaLinux:10xorg-x11-server-Xwayland24.1.5-5.el10_1ALSA-2025:21035
AlmaLinux:10xorg-x11-server-Xwayland24.1.5-5.el10_0ALSA-2025:19435
AlmaLinux:8xorg-x11-server-Xwayland21.1.3-19.el8_10ALSA-2025:19432
AlmaLinux:9xorg-x11-server-Xwayland23.2.7-5.el9_7ALSA-2025:20960
AlmaLinux:10xorg-x11-server-Xwayland-devel24.1.5-5.el10_0ALSA-2025:19435
AlmaLinux:10xorg-x11-server-Xwayland-devel24.1.5-5.el10_1ALSA-2025:21035
AlmaLinux:9xorg-x11-server-Xwayland-devel23.2.7-5.el9_7ALSA-2025:20960
AlmaLinux:8xorg-x11-server-common1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-common1.20.11-32.el9_7ALSA-2025:20961
AlmaLinux:8xorg-x11-server-devel1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-devel1.20.11-32.el9_7ALSA-2025:20961
AlmaLinux:8xorg-x11-server-source1.20.11-27.el8_10ALSA-2025:19434
AlmaLinux:9xorg-x11-server-source1.20.11-32.el9_7ALSA-2025:20961
Alpine:v3.22xorg-server21.1.19-r0ALPINE-CVE-2025-62230
Alpine:v3.23xorg-server21.1.19-r0ALPINE-CVE-2025-62230
Alpine:v3.24xorg-server21.1.19-r0ALPINE-CVE-2025-62230
Alpine:v3.22xwayland24.1.9-r0ALPINE-CVE-2025-62230
Alpine:v3.23xwayland24.1.9-r0ALPINE-CVE-2025-62230
Alpine:v3.24xwayland24.1.9-r0ALPINE-CVE-2025-62230
Debian:12xorg-server2:21.1.7-3+deb12u11DEBIAN-CVE-2025-62230
Debian:12xorg-server2:21.1.7-3+deb12u11DSA-6044-1
Debian:13xorg-server2:21.1.16-1.3+deb13u1DSA-6044-1
Debian:13xorg-server2:21.1.16-1.3+deb13u1DEBIAN-CVE-2025-62230
Debian:14xorg-server2:21.1.20-1DEBIAN-CVE-2025-62230
Debian:12xwaylandno fix listedDEBIAN-CVE-2025-62230
Debian:13xwaylandno fix listedDEBIAN-CVE-2025-62230
Debian:14xwayland2:24.1.9-1DEBIAN-CVE-2025-62230
Rocky Linux:8tigervnc0:1.15.0-8.el8_10.rocky.0.1RLSA-2025:19909
Rocky Linux:9tigervnc0:1.15.0-6.el9_7RLSA-2025:20958
Rocky Linux:8xorg-x11-server0:1.20.11-27.el8_10RLSA-2025:19434
Rocky Linux:9xorg-x11-server0:1.20.11-32.el9_6RLSA-2025:20961
Rocky Linux:9xorg-x11-server0:1.20.11-32.el9_6RLSA-2025:19433
Rocky Linux:10xorg-x11-server-Xwayland0:24.1.5-5.el10_0RLSA-2025:19435
Rocky Linux:8xorg-x11-server-Xwayland0:21.1.3-19.el8_10RLSA-2025:19432
Rocky Linux:9xorg-x11-server-Xwayland0:23.2.7-5.el9_6RLSA-2025:19623
Rocky Linux:9xorg-x11-server-Xwayland0:23.2.7-5.el9_6RLSA-2025:20960
Ubuntu:22.04:LTSxorg-server2:21.1.4-2ubuntu1.7~22.04.16USN-7846-1
Ubuntu:22.04:LTSxorg-server2:21.1.4-2ubuntu1.7~22.04.16UBUNTU-CVE-2025-62230
Ubuntu:24.04:LTSxorg-server2:21.1.12-1ubuntu1.5UBUNTU-CVE-2025-62230
Ubuntu:24.04:LTSxorg-server2:21.1.12-1ubuntu1.5USN-7846-1
Ubuntu:25.10xorg-server2:21.1.18-1ubuntu1.1UBUNTU-CVE-2025-62230
Ubuntu:25.10xorg-server2:21.1.18-1ubuntu1.1USN-7846-1
Ubuntu:26.04:LTSxorg-server2:21.1.21-1ubuntu1UBUNTU-CVE-2025-62230
Ubuntu:22.04:LTSxwayland2:22.1.1-1ubuntu0.20USN-7846-1
Ubuntu:22.04:LTSxwayland2:22.1.1-1ubuntu0.20UBUNTU-CVE-2025-62230
Ubuntu:24.04:LTSxwayland2:23.2.6-1ubuntu0.7UBUNTU-CVE-2025-62230
Ubuntu:24.04:LTSxwayland2:23.2.6-1ubuntu0.7USN-7846-1
Ubuntu:25.10xwayland2:24.1.6-1ubuntu1.1USN-7846-1
Ubuntu:25.10xwayland2:24.1.6-1ubuntu1.1UBUNTU-CVE-2025-62230
Ubuntu:26.04:LTSxwayland2:24.1.9-1UBUNTU-CVE-2025-62230

Affected products (as reported)

VendorProductVersions
X.Org Xwayland 0 – before 24.1.9
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

References