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CVE-2024-38217 CISA KEV — actively exploited

Microsoft Windows Mark of the Web (MOTW) Protection Mechanism Failure Vulnerability

Microsoft — Windows 10 Version 1507

Windows Mark of the Web Security Feature Bypass Vulnerability

CVSS scoreMedium

5.4

EPSS — exploitation probabilityMedium

10.0%

Vector breakdown

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

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

Published
Sep 10, 2024
Modified
Aug 10, 2026
Added to KEV
Sep 10, 2024
Federal patch due
Oct 1, 2024

CISA required action

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

Weakness classification

Proof-of-concept & exploitation references

Public repositories whose name or description references CVE-2024-38217, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.

No public GitHub repositories referencing CVE-2024-38217 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.

References

Frequently asked questions

What is CVE-2024-38217?

Windows Mark of the Web Security Feature Bypass Vulnerability

How severe is CVE-2024-38217?

CVE-2024-38217 has a CVSS base score of 5.4 out of 10 (CVSS 3.1).

Is CVE-2024-38217 actively exploited in the wild?

Yes. CVE-2024-38217 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Sep 10, 2024, meaning CISA has confirmed evidence of active exploitation.

What is the EPSS score for CVE-2024-38217?

10.0% - meaning FIRST.org's EPSS model estimates a 10.0% probability this vulnerability will be exploited in the wild within 30 days (95% percentile among all scored CVEs).

What type of vulnerability is CVE-2024-38217?

CVE-2024-38217 is classified under CWE-693 (CWE-693: Protection Mechanism Failure).

Cross-checked against

Impactr finds and proves whether CVE-2024-38217 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.