CVEs / CVE-2022-41091
CVE-2022-41091: Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability
- Known exploited in the CISA KEV catalog since 8 Nov 2022
- medium 5.4 CVSS 3.1 (from the CNA)
- EPSS 1.91% chance of exploitation in the next 30 days, higher than 79% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Windows Mark of the Web (MOTW) contains a security feature bypass vulnerability resulting in a limited loss of integrity and availability of security features.
Description
Windows Mark of the Web Security Feature Bypass Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1507 | from 10.0.10240.0, before 10.0.10240.19567 | 10.0.10240.19567 |
| Microsoft Windows 10 Version 1607 | from 10.0.14393.0, before 10.0.14393.5501 | 10.0.14393.5501 |
| Microsoft Windows 10 Version 1809 | from 10.0.17763.0, before 10.0.17763.3650 | 10.0.17763.3650 |
| Microsoft Windows 10 Version 1809 | from 10.0.0, before 10.0.17763.3650 | 10.0.17763.3650 |
| Microsoft Windows 10 Version 20H2 | from 10.0.0, before 10.0.19042.2251 | 10.0.19042.2251 |
| Microsoft Windows 10 Version 21H1 | from 10.0.0, before 10.0.19043.2251 | 10.0.19043.2251 |
| Microsoft Windows 10 Version 21H2 | from 10.0.19043.0, before 10.0.19044.2251 | 10.0.19044.2251 |
| Microsoft Windows 10 Version 22H2 | from 10.0.19045.0, before 10.0.19045.2251 | 10.0.19045.2251 |
| Microsoft Windows 11 version 21H2 | from 10.0.0, before 10.0.22000.1219 | 10.0.22000.1219 |
| Microsoft Windows 11 version 22H2 | from 10.0.22621.0, before 10.0.22621.819 | 10.0.22621.819 |
| Microsoft Windows Server 2016 | from 10.0.14393.0, before 10.0.14393.5501 | 10.0.14393.5501 |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.14393.0, before 10.0.14393.5501 | 10.0.14393.5501 |
| Microsoft Windows Server 2019 | from 10.0.17763.0, before 10.0.17763.3650 | 10.0.17763.3650 |
| Microsoft Windows Server 2019 (Server Core installation) | from 10.0.17763.0, before 10.0.17763.3650 | 10.0.17763.3650 |
| Microsoft Windows Server 2022 | from 10.0.20348.0, before 10.0.20348.1249 | 10.0.20348.1249 |
Exploitation
| In CISA KEV since | 8 Nov 2022 |
|---|---|
| Due date for US federal agencies | 9 Dec 2022 |
| Used in ransomware campaigns | Known |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 5.4 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:LScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-863 |
References
- CVE-2022-41091 on NVD
- CVE-2022-41091 in the CISA KEV catalog
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41091 (cited by CISA)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41091 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41091 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.