CVE-2026-21513 Microsoft Windows
Microsoft MSHTML Framework contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.
- CVSS
- not scored
On CISA’s exploited list
Microsoft MSHTML Framework Protection Mechanism Failure Vulnerability
- Added
- 2026-02-10
- Federal patch deadline
- 2026-03-03
- Ransomware use
- not known