CVE-2025-27472Network attack vector

Security feature bypass requiring user interaction

Published Apr 8, 2025 · Updated Aug 10, 2026

Protection mechanism failure in Windows Mark of the Web allows remote attackers to bypass security checks through network-delivered content. Microsoft has not disclosed the defective code path or how untrusted file-origin metadata is mishandled. Exploitation requires user interaction and can alter protected behavior or interrupt availability, without confidentiality impact.

CVSS severity5.4
Medium
EPSS probability1.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Protection mechanism failure in Windows Mark of the Web allows remote attackers to bypass security checks through network-delivered content. Microsoft has not disclosed the defective code path or how untrusted file-origin metadata is mishandled. Exploitation requires user interaction and can alter protected behavior or interrupt availability, without confidentiality impact.

The record

CVE
CVE-2025-27472
Published
Apr 8, 2025
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-693
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.10240.0 <10.0.10240.20978

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20978
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.25423
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.25423
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.22523
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.22523

Published CVSS scores

5.4MicrosoftCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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