Microsoft May 2024: 2 actively exploited zero-days
Microsoft DWM Core Library, Windows
CVE-2024-30040: Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for a security feature bypass. CVE-2024-30051: Microsoft DWM Core Library contains a privilege escalation vulnerability that allows an attacker to gain SYSTEM privileges. Added to the CISA KEV catalog on 2024-05-14. CISA lists known use in ransomware campaigns.
Why this severity: CVSS 8.8 (v3.1, CNA), actively exploited (CISA KEV); known ransomware use
- Started
- May 14, 2024
- Closed
- May 14, 2024
Affected
- See vendor advisory (versions are not listed in the KEV record)
Fixed in
- See vendor advisory linked in sources
Timeline4
Advisories5
Notes & caveats
Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).
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