Review reviewHigh

CVE-2026-58626

Microsoft Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 Version 24H2

Use after free in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.85%

Technical severityCVSS 8.8

Use after free in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.

Product: Microsoft Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 Version 24H2
Affected versions: >= 10.0.19044.0 < 10.0.19044.7548, >= 10.0.19045.0 < 10.0.19045.7548, >= 10.0.26100.0 < 10.0.26100.8875, >= 10.0.26200.0 < 10.0.26200.8875, >= 10.0.28000.0 < 10.0.28000.2525, >= 10.0.20348.0 < 10.0.20348.5386, >= 10.0.26100.0 < 10.0.26100.33158, < 10.0.19044.7548, < 10.0.19045.7548, < 10.0.26100.8875, < 10.0.26200.8875, < 10.0.28000.2269, < 10.0.20348.5386, < 10.0.26100.33158
Fixed versions: 10.0.19044.7548, 10.0.19045.7548, 10.0.26100.8875, 10.0.26200.8875, 10.0.28000.2269, 10.0.20348.5386, 10.0.26100.33158

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that Microsoft Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 Version 24H2 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.