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://msrc.microsoft.com/update-guide/advisory/CVE-2026-21513 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21513
Related Security News
- APT28 Tied to CVE-2026-21513 MSHTML 0-Day Exploited Before Feb 2026 Patch Tuesday
- Microsoft Patches 59 Vulnerabilities Including Six Actively Exploited Zero-Days
Top comments (0)