How severe is CVE-2024-38217?

CVE-2024-38217 has a CVSS 3.1 base score of 5.4 (MEDIUM). EPSS estimates a 10.0% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2024-38217: Windows Mark of the Web Security Feature Bypass

CISA Known Exploited Vulnerabilities

Microsoft Windows Mark of the Web (MOTW) Protection Mechanism Failure Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2024-09-10

Remediation due

2024-10-01

Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA notes
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38217; https://nvd.nist.gov/vuln/detail/CVE-2024-38217

Description

Windows Mark of the Web Security Feature Bypass Vulnerability

Severity

CVSS 3.1 · CNA5.4 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:F/RL:O/RC:C

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impactpartial

Exploitation Context

as of October 15, 2026

All KEV statistics→

CISA added CVE-2024-38217 to the KEV catalog on the day its CVE record was published. The median for entries added in 2024 is 21.5 days.
It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 36 added in 2024.
Its current EPSS score (10.0%) is higher than that of 26% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Microsoft	Microsoft Windows 10 Version 1507	10.0.10240.0 to <10.0.10240.20766
Microsoft	Microsoft Windows 10 Version 1607	10.0.14393.0 to <10.0.14393.7336
Microsoft	Microsoft Windows 10 Version 1809	10.0.17763.0 to <10.0.17763.6293
Microsoft	Microsoft Windows 10 Version 21H2	10.0.19043.0 to <10.0.19044.4894
Microsoft	Microsoft Windows 10 Version 22H2	10.0.19045.0 to <10.0.19045.4894
Microsoft	Microsoft Windows 11 version 21H2	10.0.0 to <10.0.22000.3197
Microsoft	Microsoft Windows 11 version 22H2	10.0.22621.0 to <10.0.22621.4169
Microsoft	Microsoft Windows 11 version 22H3	10.0.22631.0 to <10.0.22631.4169
Microsoft	Microsoft Windows 11 Version 23H2	10.0.22631.0 to <10.0.22631.4169
Microsoft	Microsoft Windows 11 Version 24H2	10.0.26100.0 to <10.0.26100.1742
Microsoft	Microsoft Windows Server 2008 Service Pack 2	6.0.6003.0 to <6.0.6003.22870
Microsoft	Microsoft Windows Server 2008 R2 Service Pack 1	6.1.7601.0 to <6.1.7601.27320
Microsoft	Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)	6.1.7601.0 to <6.1.7601.27320
Microsoft	Microsoft Windows Server 2008 Service Pack 2	6.0.6003.0 to <6.0.6003.22870
Microsoft	Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)	6.0.6003.0 to <6.0.6003.22870
Microsoft	Microsoft Windows Server 2012	6.2.9200.0 to <6.2.9200.25073
Microsoft	Microsoft Windows Server 2012 (Server Core installation)	6.2.9200.0 to <6.2.9200.25073
Microsoft	Microsoft Windows Server 2012 R2	6.3.9600.0 to <6.3.9600.22175
Microsoft	Microsoft Windows Server 2012 R2 (Server Core installation)	6.3.9600.0 to <6.3.9600.22175
Microsoft	Microsoft Windows Server 2016	10.0.14393.0 to <10.0.14393.7336
Microsoft	Microsoft Windows Server 2016 (Server Core installation)	10.0.14393.0 to <10.0.14393.7336
Microsoft	Microsoft Windows Server 2019	10.0.17763.0 to <10.0.17763.6293
Microsoft	Microsoft Windows Server 2019 (Server Core installation)	10.0.17763.0 to <10.0.17763.6293
Microsoft	Microsoft Windows Server 2022	10.0.20348.0 to <10.0.20348.2700
Microsoft	Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)	10.0.25398.0 to <10.0.25398.1128

References

2 Links

Vendor advisories

Windows Mark of the Web Security Feature Bypass Vulnerability

Other references

https://www.elastic.co/security-labs/dismantling-smart-app-control

Record Details

Published

2024-09-10

Last updated

2026-08-10

Assigner (CNA)

microsoft

Credited to

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Tool categories

Application Security Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.

CVE-2024-38217