CVE ID
CVE-2026-21513
Vulnerability Name
Microsoft MSHTML Framework Protection Mechanism Failure Vulnerability
- Project: Microsoft
- Product: Windows
Date
- Date Added: 2026-02-10
- Due Date: 2026-03-03
Description
Microsoft MSHTML Framework contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.
Known To Be Used in Ransomware Campaigns?
Unknown
Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Additional Notes
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-21513 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21513
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