Microsoft Windows MSHTML Platform Security Feature Bypass Vulnerability

Added to KEV
2024-05-14
Federal due date
2024-06-04
Vendor
Microsoft
Product
Windows
EPSS
96.6th percentile (score 0.287, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2024-30040

CISA short description

Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for a security feature bypass.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.