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CVE-2024-30040

Windows MSHTML Platform Security Feature Bypass Vulnerability

  • High 8.8
  • Exploited: added to CISA KEV 14 May 2024

Description

Windows MSHTML Platform Security Feature Bypass Vulnerability

Key facts

Published
14 May 2024
Last changed
7 Oct 2026
Assigned by
microsoft
KEV added
14 May 2024
KEV fix due
4 Jun 2024
EPSS
3.939% likely to be exploited in the next 30 days, higher than 90.559% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 8.8CVSS 3.1, Highfrom the CNA (microsoft)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

What to do

  • Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
MicrosoftWindows 10 Version 1809
  • 10.0.17763.0 up to but excluding 10.0.17763.5820 (affected)
MicrosoftWindows 10 Version 1809
  • 10.0.0 up to but excluding 10.0.17763.5820 (affected)
MicrosoftWindows Server 2019
  • 10.0.17763.0 up to but excluding 10.0.17763.5820 (affected)
MicrosoftWindows Server 2019 (Server Core installation)
  • 10.0.17763.0 up to but excluding 10.0.17763.5820 (affected)
MicrosoftWindows Server 2022
  • 10.0.20348.0 up to but excluding 10.0.20348.2461 (affected)
MicrosoftWindows 11 version 21H2
  • 10.0.0 up to but excluding 10.0.22000.2960 (affected)
MicrosoftWindows 10 Version 21H2
  • 10.0.19043.0 up to but excluding 10.0.19044.4412 (affected)
MicrosoftWindows 11 version 22H2
  • 10.0.22621.0 up to but excluding 10.0.22621.3593 (affected)
MicrosoftWindows 10 Version 22H2
  • 10.0.19045.0 up to but excluding 10.0.19045.4412 (affected)
MicrosoftWindows 11 version 22H3
  • 10.0.22631.0 up to but excluding 10.0.22631.3593 (affected)
MicrosoftWindows 11 Version 23H2
  • 10.0.22631.0 up to but excluding 10.0.22631.3593 (affected)
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)
  • 10.0.25398.0 up to but excluding 10.0.25398.887 (affected)
MicrosoftWindows 10 Version 1507
  • 10.0.10240.0 up to but excluding 10.0.10240.20651 (affected)
MicrosoftWindows 10 Version 1607
  • 10.0.14393.0 up to but excluding 10.0.14393.6981 (affected)
MicrosoftWindows Server 2016
  • 10.0.14393.0 up to but excluding 10.0.14393.6981 (affected)
MicrosoftWindows Server 2016 (Server Core installation)
  • 10.0.14393.0 up to but excluding 10.0.14393.6981 (affected)

Timeline

  1. 14 May 2024 Added to the CISA KEV catalogue
  2. 14 May 2024 Published

Weakness

References