Microsoft Windows MSHTML Platform Spoofing Vulnerability

Added to KEV
2024-10-08
Federal due date
2024-10-29
Vendor
Microsoft
Product
Windows
EPSS
95.2th percentile (score 0.177, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2024-43573

CISA short description

Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.

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.