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CVE record · CVE-2024-30040

Windows MSHTML Platform Security Feature Bypass Vulnerability

CVSS 8.8 HighCriticalIn CISA KEVEPSS 0.039 · 90th percentile

Critical, because:

  • In CISA’s KEV catalogue since 14 May 2024: it is known to be exploited.

How we decide what’s critical

Published by the CVE Program (CNA: microsoft) at 14 May 2024, 16:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Microsoft Windows 10 Version 1809
  • affected 10.0.17763.0 to before 10.0.17763.5820 custom
Microsoft Windows 10 Version 1809
  • affected 10.0.0 to before 10.0.17763.5820 custom
Microsoft Windows Server 2019
  • affected 10.0.17763.0 to before 10.0.17763.5820 custom
Microsoft Windows Server 2019 (Server Core installation)
  • affected 10.0.17763.0 to before 10.0.17763.5820 custom
Microsoft Windows Server 2022
  • affected 10.0.20348.0 to before 10.0.20348.2461 custom
Microsoft Windows 11 version 21H2
  • affected 10.0.0 to before 10.0.22000.2960 custom
Microsoft Windows 10 Version 21H2
  • affected 10.0.19043.0 to before 10.0.19044.4412 custom
Microsoft Windows 11 version 22H2
  • affected 10.0.22621.0 to before 10.0.22621.3593 custom
Microsoft Windows 10 Version 22H2
  • affected 10.0.19045.0 to before 10.0.19045.4412 custom
Microsoft Windows 11 version 22H3
  • affected 10.0.22631.0 to before 10.0.22631.3593 custom
Microsoft Windows 11 Version 23H2
  • affected 10.0.22631.0 to before 10.0.22631.3593 custom
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
  • affected 10.0.25398.0 to before 10.0.25398.887 custom
Microsoft Windows 10 Version 1507
  • affected 10.0.10240.0 to before 10.0.10240.20651 custom
Microsoft Windows 10 Version 1607
  • affected 10.0.14393.0 to before 10.0.14393.6981 custom
Microsoft Windows Server 2016
  • affected 10.0.14393.0 to before 10.0.14393.6981 custom
Microsoft Windows Server 2016 (Server Core installation)
  • affected 10.0.14393.0 to before 10.0.14393.6981 custom
Identifiers
CVE-2024-30040
CNA
microsoft
Weakness (CWE)
CWE-20
Tags
Published
14 May 2024
Updated
7 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C CNA (microsoft)
  • CISA KEV Listed since 14 May 2024: known to be exploited.
  • EPSS 0.039, the 90th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 May 2024. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.