CVE-2025-62230
HIGH severity · CVSS 7.3 · Use-after-free
7.3CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactLow
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2025:19432Advisory
- https://access.redhat.com/errata/RHSA-2025:19433Advisory
- https://access.redhat.com/errata/RHSA-2025:19434Advisory
- https://access.redhat.com/errata/RHSA-2025:19435Advisory
- https://access.redhat.com/errata/RHSA-2025:19489Advisory
- https://access.redhat.com/errata/RHSA-2025:19623Advisory
- https://access.redhat.com/errata/RHSA-2025:19909Advisory
- https://access.redhat.com/errata/RHSA-2025:20958Advisory