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Fencer Vulns
medium 5.4

CVE-2024-38217 kev in the critical feed json

Windows Mark of the Web Security Feature Bypass Vulnerability

published 2024-09-10 2 y ago modified 2026-08-10 2 mo ago also EUVD-2024-37184

cvss
5.4
version 3.1, CNA
cisa kev
Exploited
added 2024-09-10
epss
10.0%
EPSS 10.0% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

Windows Mark of the Web Security Feature Bypass Vulnerability

Patch / fix

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

  • Microsoft Windows 10 Version 1507 10.0.10240.20766
  • Microsoft Windows 10 Version 1607 10.0.14393.7336
  • Microsoft Windows 10 Version 1809 10.0.17763.6293
  • Microsoft Windows 10 Version 21H2 10.0.19044.4894
  • Microsoft Windows 10 Version 22H2 10.0.19045.4894
  • Microsoft Windows 11 version 21H2 10.0.22000.3197
  • Microsoft Windows 11 version 22H2 10.0.22621.4169
  • Microsoft Windows 11 version 22H3 10.0.22631.4169
  • Microsoft Windows 11 Version 23H2 10.0.22631.4169
  • Microsoft Windows 11 Version 24H2 10.0.26100.1742
  • Microsoft Windows Server 2008 Service Pack 2 6.0.6003.22870
  • Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.27320
  • Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.27320
  • Microsoft Windows Server 2008 Service Pack 2 6.0.6003.22870
  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.22870
  • Microsoft Windows Server 2012 6.2.9200.25073
  • Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.25073
  • Microsoft Windows Server 2012 R2 6.3.9600.22175
  • Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.22175
  • Microsoft Windows Server 2016 10.0.14393.7336
  • Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.7336
  • Microsoft Windows Server 2019 10.0.17763.6293
  • Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.6293
  • Microsoft Windows Server 2022 10.0.20348.2700
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1128

Timeline

  1. Added to CISA KEV
  2. Published
  3. CISA SSVC: exploitation active
  4. CISA patch deadline

Known exploited

Added
2 y ago
Patch by
2024-10-01 (2 y ago)
Ransomware
Not known
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vendor, product
Microsoft, Windows
CISA name
Microsoft Windows Mark of the Web (MOTW) Protection Mechanism Failure Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

10.03% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • elastic.co https://www.elastic.co/security-labs/dismantling-smart-app-control referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.4 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
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Affected products

  • Microsoft Windows 10 Version 1507
  • Microsoft Windows 10 Version 1607
  • Microsoft Windows 10 Version 1809
  • Microsoft Windows 10 Version 21H2
  • Microsoft Windows 10 Version 22H2
  • Microsoft Windows 11 version 21H2
  • Microsoft Windows 11 version 22H2
  • Microsoft Windows 11 version 22H3
  • Microsoft Windows 11 Version 23H2
  • Microsoft Windows 11 Version 24H2
  • Microsoft Windows Server 2008 Service Pack 2
  • Microsoft Windows Server 2008 R2 Service Pack 1
  • Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
  • Microsoft Windows Server 2008 Service Pack 2
  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 (Server Core installation)
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2012 R2 (Server Core installation)
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2016 (Server Core installation)
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2019 (Server Core installation)
  • Microsoft Windows Server 2022
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

Classification

Weakness
  • CWE-693 Protection Mechanism Failure

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.