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High 7.3Published Oct 30, 2025

CVE-2025-62230A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup.

Updated under an hour ago ()

Does this affect you?

It affects x.org x_server and 10 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
7.3 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Weakness (CWE)
CWE-416
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Jul 1, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
x.org x_server
x.org:x_server
before 21.1.19
NVD
x.org xwayland
x.org:xwayland
before 24.1.9
NVD
ibm vios
ibm:vios
from 4.1.0 before 4.1.1.30; 4.1.2.0
NVD
ibm aix
ibm:aix
from 7.2.5 before 7.2.5.12; from 7.3.2 before 7.3.3.3; 7.3.4
NVD
debian debian_linux
debian:debian_linux
11.0
NVD
redhat enterprise_linux
redhat:enterprise_linux
8.0; 9.0; 10.0
NVD
redhat enterprise_linux_aus
redhat:enterprise_linux_aus
8.2; 8.4; 8.6
NVD
redhat enterprise_linux_els
redhat:enterprise_linux_els
6.0; 7.0
NVD
redhat enterprise_linux_eus
redhat:enterprise_linux_eus
8.4; 9.4
NVD
redhat enterprise_linux_tus
redhat:enterprise_linux_tus
8.6; 8.8
NVD
redhat enterprise_linux_update_services_for_sap_solutions
redhat:enterprise_linux_update_services_for_sap_solutions
8.6; 8.8; 9.0; 9.2
NVD

References

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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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