CVE-2025-62231
HIGH severity · CVSS 7.3 · Integer overflow
7.3CVSS HIGH
Summary
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.
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