Is CVE-2025-62230 being actively exploited?

CVE-2025-62230 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2025-62230?

CVE-2025-62230 has a CVSS 3.1 base score of 7.3 (HIGH).

CVE-2025-62230

HIGH · CVSS 7.3EPSS 0.3%EU EUVD

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.

Key facts

CVSS score: 7.3 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Weakness (CWE): CWE-416
EPSS score: 0.3% (19th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2025-36902)
Published: October 30, 2025
NVD last modified: July 1, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2025-36902 in the EU Vulnerability Database. Last updated in EUVD on April 20, 2026.

View on the EU Vulnerability Database

Affected products

debian / debian linux
ibm / aix
ibm / aix
ibm / vios
ibm / vios
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
redhat / enterprise linux update services for sap solutions
x.org / x server
x.org / xwayland

Certified products that may be affected

34 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 8 NSS Cryptographic Module - Red Hat, Inc. - FIPS 140 5513 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, LLC - FIPS 140 5461 - active
Red Hat Enterprise Linux 9 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5445 - active
Red Hat Enterprise Linux 9 libgcrypt - Red Hat, Inc. - FIPS 140 5366 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5089 - active

See all 34 in the Security Certifications Explorer.

References

http://www.openwall.com/lists/oss-security/2025/10/28/7(Mailing List, Patch)
https://access.redhat.com/errata/RHSA-2025:19432(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:19433(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:19434(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:19435(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:19489(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:19623(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:19909(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:20958(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:20960(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:20961(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:21035(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22040(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22041(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22051(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22055(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22056(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22077(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22096(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22164(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22167(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22364(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22365(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22426(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22427(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22667(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22729(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22742(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2025:22753(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2026:0031(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2026:0033(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2026:0034(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2026:0035(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2026:0036(Third Party Advisory)
https://access.redhat.com/security/cve/CVE-2025-62230(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=2402653(Issue Tracking, Third Party Advisory)
https://lists.debian.org/debian-lts-announce/2025/10/msg00033.html(Mailing List, Third Party Advisory)
https://lists.x.org/archives/xorg-announce/2025-October/003635.html(Mailing List, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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