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Fencer Intel
medium 5.4

CVE-2022-41091 kev+ ransomware in the critical feed json

Windows Mark of the Web Security Feature Bypass Vulnerability

published 4y ago modified 2mo ago also EUVD-2022-44334

cvss
5.4
version 3.1, CNA
cisa kev
Exploited
added 2022-11-08, used in ransomware
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Windows Mark of the Web Security Feature Bypass Vulnerability

Patch / fix

cisa required action Apply updates per vendor instructions.

  • Microsoft Windows 10 Version 1507 10.0.10240.19567
  • Microsoft Windows 10 Version 1607 10.0.14393.5501
  • Microsoft Windows 10 Version 1809 10.0.17763.3650
  • Microsoft Windows 10 Version 20H2 10.0.19042.2251
  • Microsoft Windows 10 Version 21H1 10.0.19043.2251
  • Microsoft Windows 10 Version 21H2 10.0.19044.2251
  • Microsoft Windows 10 Version 22H2 10.0.19045.2251
  • Microsoft Windows 11 version 21H2 10.0.22000.1219
  • Microsoft Windows 11 version 22H2 10.0.22621.819
  • Microsoft Windows Server 2016 10.0.14393.5501
  • Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.5501
  • Microsoft Windows Server 2019 10.0.17763.3650
  • Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.3650
  • Microsoft Windows Server 2022 10.0.20348.1249

Is CVE-2022-41091 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

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

Known exploited

Added
4y ago
Patch by
2022-12-09 (3y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply updates per vendor instructions.
Vendor, product
Microsoft, Windows
CISA name
Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability

CISA SSVC

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

Exploit prediction

2.25% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

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:U/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 20H2
  • Microsoft Windows 10 Version 21H1
  • Microsoft Windows 10 Version 21H2
  • Microsoft Windows 10 Version 22H2
  • Microsoft Windows 11 version 21H2
  • Microsoft Windows 11 version 22H2
  • 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

Classification

Weakness

References

Sources

Fencer Intel 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.