CVE-2024-43573
Published: October 8, 2024
Official Description
Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
CISA KEV Advisory
Microsoft Windows MSHTML Platform Spoofing Vulnerability
Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
An unspecified spoofing vulnerability in Microsoft Windows MSHTML Platform can lead to a loss of confidentiality. The high EPSS score and confirmed exploitation indicate that this is an actively exploited vulnerability that could compromise sensitive information.
This vulnerability is actively exploited in the wild and is included in CISA's KEV catalog. The unspecified nature suggests a broad attack surface, making it a critical concern.
Apply the latest security updates for Microsoft Windows to patch the MSHTML Platform vulnerability. Implement robust endpoint detection and response solutions to identify and mitigate potential spoofing attempts.
Technical Analysis
CVE-2024-43573 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2024-43573 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-43573 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1