CVE-2025-62230 remediation guide

X.Org Xwayland, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION

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.

Open CVE record

ProductX.Org Xwayland, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION

Affected versions< 21.1.19, < 24.1.9, >= 4.1.0 < 4.1.1.30, 4.1.2.0, >= 7.2.5 < 7.2.5.12, >= 7.3.2 < 7.3.3.3, 7.3.4, 11.0, 8.0, 9.0, 10.0, 8.2, 8.4, 8.6, 6.0, 7.0, 9.4, 8.8, 9.2

Fixed versions21.1.19, 24.1.9, 4.1.1.30, 7.2.5.12, 7.3.3.3

Priority basisReview · CVSS 7.3 · EPSS 0.26%

Identify the affected asset

Confirm whether X.Org Xwayland, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION is installed, record the deployed version and installation path, and identify exposed interfaces.

Record the product name, package or appliance identifier, and installed version.
Identify internet-facing, administrative, API, and internal access paths.
Preserve the pre-change configuration and relevant service logs.

Validate the affected-version match

Compare the deployed version with the affected range: < 21.1.19, < 24.1.9, >= 4.1.0 < 4.1.1.30, 4.1.2.0, >= 7.2.5 < 7.2.5.12, >= 7.3.2 < 7.3.3.3, 7.3.4, 11.0, 8.0, 9.0, 10.0, 8.2, 8.4, 8.6, 6.0, 7.0, 9.4, 8.8, 9.2. Treat incomplete inventory results as unresolved.

Prioritize with independent signals

The CVSS severity warrants an early asset and exposure review. Combine this signal with asset criticality, exposure, compensating controls, and business impact.

Apply supported remediation

Follow the vendor advisory or supported update path. Current fixed-version status: 21.1.19, 24.1.9, 4.1.1.30, 7.2.5.12, 7.3.3.3. Preserve configuration and rollback material before change.

Verify the result

Confirm the resulting version, service health, authentication and access paths, monitoring coverage, and relevant security logs.

Confirm the expected version and package state.
Run a functional health check for critical service paths.
Review authentication, error, application, and security monitoring logs.
Reassess exposure if the supported fix cannot be applied.

Operational boundary

This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.