CVE-2025-62230
published 2025-10-30CVE-2025-62230: 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…
PriorityP343high7.3CVSS 3.1
AVLACLPRLUINSUCHILAH
EPSS
0.27%
18.4th percentile
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
33 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | xorg-server | < xorg-server 2:21.1.7-3+deb12u11 (bookworm) | xorg-server 2:21.1.7-3+deb12u11 (bookworm) |
| debian | xwayland | < xorg-server 2:21.1.7-3+deb12u11 (bookworm) | xorg-server 2:21.1.7-3+deb12u11 (bookworm) |
| ibm | aix | — | — |
| ibm | aix | >= 7.2.5 < 7.2.5.12 | 7.2.5.12 |
| ibm | aix | >= 7.3.2 < 7.3.3.3 | 7.3.3.3 |
| ibm | vios | — | — |
| ibm | vios | >= 4.1.0 < 4.1.1.30 | 4.1.1.30 |
| msrc | azl3_wayland_1.22.0-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_xorg-x11-server-xwayland_24.1.6-2_on_azure_linux_3.0 | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux_aus | — | — |
| redhat | enterprise_linux_aus | — | — |
| redhat | enterprise_linux_aus | — | — |
| redhat | enterprise_linux_els | — | — |
| redhat | enterprise_linux_els | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_tus | — | — |
| redhat | enterprise_linux_tus | — | — |
| redhat | enterprise_linux_update_services_for_sap_solutions | — | — |
| redhat | enterprise_linux_update_services_for_sap_solutions | — | — |
| redhat | enterprise_linux_update_services_for_sap_solutions | — | — |
CVSS provenance
nvdv3.17.3HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
osv7.3HIGH
vendor_debian7.3HIGH
vendor_msrc7.3HIGH
vendor_redhat7.3HIGH
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GHSA
GHSA-892r-x96w-jh76: A flaw was discovered in the X
ghsa_unreviewed·2025-10-30
CVE-2025-62230 [HIGH] CWE-416 GHSA-892r-x96w-jh76: A flaw was discovered in the X
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.
OSV
CVE-2025-62230: A flaw was discovered in the X
osv·2025-10-30·CVSS 7.3
CVE-2025-62230 [HIGH] CVE-2025-62230: A flaw was discovered in the X
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.
Red Hat
xorg: xwayland: Use-after-free in Xkb client resource removal
vendor_redhat·2025-10-29·CVSS 7.3
CVE-2025-62230 [HIGH] CWE-416 xorg: xwayland: Use-after-free in Xkb client resource removal
xorg: xwayland: Use-after-free in Xkb client resource removal
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.
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.
Statement: The Red Hat Product Security team has rated this vulnerability as Moderate.The flaw is a
Ubuntu
X.Org X Server vulnerabilities
vendor_ubuntu·2025-10-29
CVE-2025-62230 X.Org X Server vulnerabilities
Title: X.Org X Server vulnerabilities
Summary: Several security issues were fixed in X.Org X Server.
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain memory operations. An attacker could use these issues to cause the
X Server to crash, leading to a denial of service, obtain sensitive
information, or possibly execute arbitrary code.
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Microsoft
Xorg: xwayland: use-after-free in xkb client resource removal
vendor_msrc·2025-10-14·CVSS 7.3
CVE-2025-62230 [HIGH] CWE-416 Xorg: xwayland: use-after-free in xkb client resource removal
Xorg: xwayland: use-after-free in xkb client resource removal
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https
Debian
CVE-2025-62230: xorg-server - A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when ha...
vendor_debian·2025·CVSS 7.3
CVE-2025-62230 [HIGH] CVE-2025-62230: xorg-server - A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when ha...
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.
Scope: local
bookworm: resolved (fixed in 2:21.1.7-3+deb12u11)
bullseye: resolved (fixed in 2:1.20.11-1+deb11u17)
forky: resolved (fixed in 2:21.1.20-1)
sid: resolved (fixed in 2:21.1.20-1)
trixie: resolved (fixed in 2:21.1.16-1.3+deb13u1)
No detection rules found.
No public exploits indexed.
https://access.redhat.com/errata/RHSA-2025:19432https://access.redhat.com/errata/RHSA-2025:19433https://access.redhat.com/errata/RHSA-2025:19434https://access.redhat.com/errata/RHSA-2025:19435https://access.redhat.com/errata/RHSA-2025:19489https://access.redhat.com/errata/RHSA-2025:19623https://access.redhat.com/errata/RHSA-2025:19909https://access.redhat.com/errata/RHSA-2025:20958https://access.redhat.com/errata/RHSA-2025:20960https://access.redhat.com/errata/RHSA-2025:20961https://access.redhat.com/errata/RHSA-2025:21035https://access.redhat.com/errata/RHSA-2025:22040https://access.redhat.com/errata/RHSA-2025:22041https://access.redhat.com/errata/RHSA-2025:22051https://access.redhat.com/errata/RHSA-2025:22055https://access.redhat.com/errata/RHSA-2025:22056https://access.redhat.com/errata/RHSA-2025:22077https://access.redhat.com/errata/RHSA-2025:22096https://access.redhat.com/errata/RHSA-2025:22164https://access.redhat.com/errata/RHSA-2025:22167https://access.redhat.com/errata/RHSA-2025:22364https://access.redhat.com/errata/RHSA-2025:22365https://access.redhat.com/errata/RHSA-2025:22426https://access.redhat.com/errata/RHSA-2025:22427https://access.redhat.com/errata/RHSA-2025:22667https://access.redhat.com/errata/RHSA-2025:22729https://access.redhat.com/errata/RHSA-2025:22742https://access.redhat.com/errata/RHSA-2025:22753https://access.redhat.com/errata/RHSA-2026:0031https://access.redhat.com/errata/RHSA-2026:0033https://access.redhat.com/errata/RHSA-2026:0034https://access.redhat.com/errata/RHSA-2026:0035https://access.redhat.com/errata/RHSA-2026:0036https://access.redhat.com/security/cve/CVE-2025-62230https://bugzilla.redhat.com/show_bug.cgi?id=2402653https://lists.x.org/archives/xorg-announce/2025-October/003635.htmlhttp://www.openwall.com/lists/oss-security/2025/10/28/7https://lists.debian.org/debian-lts-announce/2025/10/msg00033.html
2025-10-30
Published