CVE-2022-41091 kev+ ransomware in the critical feed json
Windows Mark of the Web Security Feature Bypass Vulnerability
published 2022-11-09 4 y ago modified 2026-08-10 2 mo 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
Timeline
- Added to CISA KEV
- Published
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-12-09 (3 y 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
- 2 y ago
Exploit prediction
2.25% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
-
- CWE-863 Incorrect Authorization
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2022-41091
vendor-advisory, patch
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41091
government-resource, us-government-resource
Sources
- CVE List CVE-2022-41091
- NVD CVE-2022-41091
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.