Medium [CVE-2025-27472] Windows Mark of the Web Security Feature Bypass Vulnerability
This medium-severity Microsoft Server advisory covers CVE-2025-27472 affecting Windows Server 2012 (Server Core installation), Windows Server 2012 R2 (Server Core installation).
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Summary
Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.
Affected products named by the advisory: Windows Server 2012; Windows Server 2012 (Server Core installation); Windows Server 2012 R2; Windows Server 2012 R2 (Server Core installation).
- Windows 10 Version 1507 10.0.10240.0 before 10.0.10240.20978
- Windows Server 2012 6.2.9200.0 before 6.2.9200.25423
- Windows Server 2012 (Server Core installation) 6.2.9200.0 before 6.2.9200.25423
- Windows Server 2012 R2 6.3.9600.0 before 6.3.9600.22523
- Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 before 6.3.9600.22523
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 10.0.10240.20978
- 6.2.9200.25423
- 6.3.9600.22523
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 10.0.10240.20978, 6.2.9200.25423, 6.3.9600.22523. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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