OnlyFm252
Windows Mark of the Web (MOTW)

CVE-2025-27472 — Windows Mark of the Web Security Feature Bypass Vulnerability

Important CVSS 5.4 EPSS 0.01411 2025-04 archive

Executive Summary

Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.

Overview

5.4
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
Category Security Feature Bypass
Released Apr 8 2025
Last Updated Apr 8 2025
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.01411 — 0.69166 percentile
NVD CVSS 5.4 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
Low
AVAILABILITY
Low
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.7

EPSS Score

0.01411
probability of exploitation in the next 30 days
0.69166 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

6 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5055547 (Security Update) Important Security Feature Bypass Yes
Windows 10 for x64-based Systems 5055547 (Security Update) Important Security Feature Bypass Yes
Windows Server 2012 5055581 (Monthly Rollup) Important Security Feature Bypass Yes
Windows Server 2012 (Server Core installation) 5055581 (Monthly Rollup) Important Security Feature Bypass Yes
Windows Server 2012 R2 5055557 (Monthly Rollup) Important Security Feature Bypass Yes
Windows Server 2012 R2 (Server Core installation) 5055557 (Monthly Rollup) Important Security Feature Bypass Yes

Patches

3 patches
Article Type Restart
5055547 Security Update Yes
5055581 Monthly Rollup Yes
5055557 Monthly Rollup Yes

Known Exploits

Acknowledgments

Blaz Satler

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