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CVE-2022-41091: Windows Mark of the Web Security Feature Bypass Vulnerability

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-11-08
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-11-09 · updated 2026-08-10
• Weakness: CWE-863

Description

Windows Mark of the Web Security Feature Bypass Vulnerability

Affected products

• Microsoft Windows 10 Version 1507: before 10.0.10240.19567 — fixed in 10.0.10240.19567
• Microsoft Windows 10 1607: before 10.0.14393.5501 — fixed in 10.0.14393.5501
• Microsoft Windows 10: before 10.0.17763.3650 — fixed in 10.0.17763.3650
• Microsoft Windows 10 20H2: before 10.0.19042.2251 — fixed in 10.0.19042.2251
• Microsoft Windows 10 21H1: before 10.0.19043.2251 — fixed in 10.0.19043.2251
• Microsoft Windows 10: before 10.0.19044.2251 — fixed in 10.0.19044.2251
• Microsoft Windows 10: before 10.0.19045.2251 — fixed in 10.0.19045.2251
• Microsoft Windows 11 21H2: before 10.0.22000.1219 — fixed in 10.0.22000.1219
• Microsoft Windows 11: before 10.0.22621.819 — fixed in 10.0.22621.819
• Microsoft Windows Server 2016: before 10.0.14393.5501 — fixed in 10.0.14393.5501
• Microsoft Windows Server 2019: before 10.0.17763.3650 — fixed in 10.0.17763.3650
• Microsoft Windows Server 2022: before 10.0.20348.1249 — fixed in 10.0.20348.1249
• Microsoft Windows 10 Version 1507: from 10.0.10240.0 before 10.0.10240.19567 — fixed in 10.0.10240.19567
• Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.5501 — fixed in 10.0.14393.5501
• Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.3650 — fixed in 10.0.17763.3650
• Microsoft Windows 10 20H2: from 10.0.0 before 10.0.19042.2251 — fixed in 10.0.19042.2251
• Microsoft Windows 10 21H1: from 10.0.0 before 10.0.19043.2251 — fixed in 10.0.19043.2251
• Microsoft Windows 10: from 10.0.19043.0 before 10.0.19044.2251 — fixed in 10.0.19044.2251
• Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.2251 — fixed in 10.0.19045.2251
• Microsoft Windows 11 21H2: from 10.0.0 before 10.0.22000.1219 — fixed in 10.0.22000.1219
• Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.819 — fixed in 10.0.22621.819
• Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.5501 — fixed in 10.0.14393.5501
• Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.3650 — fixed in 10.0.17763.3650
• Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.1249 — fixed in 10.0.20348.1249

How to fix

Upgrade to a fixed version: Microsoft Windows 10 Version 1507 10.0.10240.19567; Microsoft Windows 10 1607 10.0.14393.5501; Microsoft Windows 10 10.0.17763.3650; Microsoft Windows 10 20H2 10.0.19042.2251; Microsoft Windows 10 21H1 10.0.19043.2251; Microsoft Windows 10 10.0.19044.2251; Microsoft Windows 10 10.0.19045.2251; Microsoft Windows 11 21H2 10.0.22000.1219; Microsoft Windows 11 10.0.22621.819; Microsoft Windows Server 2016 10.0.14393.5501; Microsoft Windows Server 2019 10.0.17763.3650; Microsoft Windows Server 2022 10.0.20348.1249. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41091
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41091
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41091

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