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

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

Published: 2025-04-08 Last update: 2025-07-08 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-27472 is rated Moderate Risk (51.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.12%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-27472

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-07 1.57% 2.12% +0.55%
2 2026-06-01 1.83% 1.57% -0.25%
3 2026-05-31 1.83%

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-27472

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
2.8 2.5 [email protected]

Weakness enumeration for CVE-2025-27472

Affected software / configurations for CVE-2025-27472

Vendor Product Version Raw CPE
microsoft windows_10_1507 < 10.0.10240.20978 cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
microsoft windows_10_1507 < 10.0.10240.20978 cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*
microsoft windows_server_2012 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
microsoft windows_server_2012 r2 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*

References for CVE-2025-27472

cvelogic Threat Intelligence