Review reviewHigh

CVE-2026-20808

Microsoft Windows 11 Version 24H2, Windows 11 Version 25H2, Windows Server 2022, 23H2 Edition (Server Core installation)

Concurrent execution using shared resource with improper synchronization ('race condition') in Printer Association Object allows an authorized attacker to elevate privileges locally.

CVSS: 7
EPSS: -
CISA KEV: Not listed
Published: 2026.01.14

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability-

Technical severityCVSS 7

Vulnerability overview

Concurrent execution using shared resource with improper synchronization ('race condition') in Printer Association Object allows an authorized attacker to elevate privileges locally.

Affected product and versions

Product: Microsoft Windows 11 Version 24H2, Windows 11 Version 25H2, Windows Server 2022, 23H2 Edition (Server Core installation)
Affected versions: >= 10.0.26100.0 < 10.0.26100.7623, >= 10.0.26200.0 < 10.0.26200.7623, >= 10.0.25398.0 < 10.0.25398.2092, >= 10.0.26100.0 < 10.0.26100.32230, < 10.0.26100.7623, < 10.0.26200.7623, < 10.0.25398.2092, < 10.0.26100.32230
Fixed versions: 10.0.26100.7623, 10.0.26200.7623, 10.0.25398.2092, 10.0.26100.32230

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Microsoft Windows 11 Version 24H2, Windows 11 Version 25H2, Windows Server 2022, 23H2 Edition (Server Core installation) 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.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-362