Windows Mark of the Web Security Feature Bypass Vulnerability
CVE-2025-27472 is fixed in 6 products on 1 platform, first by KB5055581, released April 8, 2025. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.
<p>Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 for 32-bit Systems | 10240.20979 | KB5055547 | Apr 9, 2025 |
| Windows 10 for x64-based Systems | 10240.20979 | KB5055547 | Apr 9, 2025 |
| Windows Server 2012 | KB5055581 | Apr 8, 2025 | |
| Windows Server 2012 (Server Core installation) | KB5055581 | Apr 8, 2025 | |
| Windows Server 2012 R2 | KB5055557 | Apr 8, 2025 | |
| Windows Server 2012 R2 (Server Core installation) | KB5055557 | Apr 8, 2025 | |
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