CVE-2024-30040: Microsoft Windows MSHTML Platform Security Feature Bypass Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2024-05-14. EPSS: 3.9% chance of exploitation in the next 30 days.

Windows MSHTML Platform Security Feature Bypass Vulnerability

Affected products

• Microsoft Windows 10 1507: before 10.0.10240.20651 (fixed in 10.0.10240.20651)
• Microsoft Windows 10 1607: before 10.0.14393.6981 (fixed in 10.0.14393.6981)
• Microsoft Windows 10 1809: before 10.0.17763.5820 (fixed in 10.0.17763.5820)
• Microsoft Windows 10 21h2: before 10.0.19044.4412 (fixed in 10.0.19044.4412)
• Microsoft Windows 10 22h2: before 10.0.19045.4412 (fixed in 10.0.19045.4412)
• Microsoft Windows 11 21h2: before 10.0.22000.2960 (fixed in 10.0.22000.2960)
• Microsoft Windows 11 22h2: before 10.0.22621.3593 (fixed in 10.0.22621.3593)
• Microsoft Windows 11 23h2: before 10.0.22631.3593 (fixed in 10.0.22631.3593)
• Microsoft Windows Server 2016: before 10.0.14393.6981 (fixed in 10.0.14393.6981)
• Microsoft Windows Server 2019: before 10.0.17763.5820 (fixed in 10.0.17763.5820)
• Microsoft Windows Server 2022: before 10.0.20348.2458 (fixed in 10.0.20348.2458)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.887 (fixed in 10.0.25398.887)

Published 2024-05-14. Last modified 2026-06-17.