Microsoft

CVE-2025-24061: Windows Mark of the Web Security Feature Bypass Vulnerability

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 3 Apr 2025. It cites 2 public reports, the first from 3 Apr 2025.

How likely is exploitation in the next 30 days?

1.2%

EPSS score, percentile 68.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

7.8 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (1)

Which versions are affected?

Affected

from 10.0.10240.0 to before 10.0.10240.20947
from 10.0.14393.0 to before 10.0.14393.7876
from 10.0.17763.0 to before 10.0.17763.7009
from 10.0.19044.0 to before 10.0.19044.5608
from 10.0.19045.0 to before 10.0.19045.5608
from 10.0.22621.0 to before 10.0.22621.5039

and 11 more in the table below

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

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 locally.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

Windows Mark of the Web Security Feature Bypass Vulnerability (Vendor advisory, Patch)

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (17 products)

Microsoft Windows 10 Version 1507
Status	Versions
Affected	from 10.0.10240.0 to before 10.0.10240.20947

Microsoft Windows 10 Version 1607
Status	Versions
Affected	from 10.0.14393.0 to before 10.0.14393.7876

Microsoft Windows 10 Version 1809
Status	Versions
Affected	from 10.0.17763.0 to before 10.0.17763.7009

Microsoft Windows 10 Version 21H2
Status	Versions
Affected	from 10.0.19044.0 to before 10.0.19044.5608

Microsoft Windows 10 Version 22H2
Status	Versions
Affected	from 10.0.19045.0 to before 10.0.19045.5608

Microsoft Windows 11 version 22H2
Status	Versions
Affected	from 10.0.22621.0 to before 10.0.22621.5039

Microsoft Windows 11 version 22H3
Status	Versions
Affected	from 10.0.22631.0 to before 10.0.22631.5039

Microsoft Windows 11 Version 23H2
Status	Versions
Affected	from 10.0.22631.0 to before 10.0.22631.5039

Microsoft Windows 11 Version 24H2
Status	Versions
Affected	from 10.0.26100.0 to before 10.0.26100.3476

Microsoft Windows Server 2016
Status	Versions
Affected	from 10.0.14393.0 to before 10.0.14393.7876

Microsoft Windows Server 2016 (Server Core installation)
Status	Versions
Affected	from 10.0.14393.0 to before 10.0.14393.7876

Microsoft Windows Server 2019
Status	Versions
Affected	from 10.0.17763.0 to before 10.0.17763.7009

Microsoft Windows Server 2019 (Server Core installation)
Status	Versions
Affected	from 10.0.17763.0 to before 10.0.17763.7009

Microsoft Windows Server 2022
Status	Versions
Affected	from 10.0.20348.0 to before 10.0.20348.3328

Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
Status	Versions
Affected	from 10.0.25398.0 to before 10.0.25398.1486

Microsoft Windows Server 2025
Status	Versions
Affected	from 10.0.26100.0 to before 10.0.26100.3476

Microsoft Windows Server 2025 (Server Core installation)
Status	Versions
Affected	from 10.0.26100.0 to before 10.0.26100.3476

Source: CVE List, as of 30 Oct 2026. About the data.

Weakness

CWE-693

CWE-693: Protection Mechanism Failure

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

Date	Event
11 Mar 2025	CVE record published
13 Feb 2026	CVE record last updated

Known exploited Microsoft vulnerabilities

CVE-2026-96951: Microsoft Windows Command Injection Vulnerability (added 13 Oct 2026)
CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability (added 25 Sep 2026)
CVE-2026-81963: Microsoft Windows Link Following Vulnerability (added 8 Sep 2026)
CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability (added 8 Sep 2026)
CVE-2019-1068: Microsoft SQL Server Remote Code Execution Vulnerability (added 26 Aug 2026)