CVE-2026-21513
MI
Microsoft Windows
Microsoft MSHTML Framework Protection Mechanism Failure Vulnerability
What it is
Microsoft MSHTML Framework contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor notices and references
Description and required action as published by CISA. Full record at NVD.
Other Microsoft entries on the list
- Office Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability CVE-2026-124194 · Nov 10, 2026
- Windows Microsoft Windows Command Injection Vulnerability CVE-2026-96951 · Oct 13, 2026
- SharePoint Microsoft SharePoint Code Injection Vulnerability CVE-2026-65660 · Sep 25, 2026
- Windows Microsoft Windows Heap-Based Buffer Overflow Vulnerability CVE-2026-85880 · Sep 8, 2026
- Windows Microsoft Windows Link Following Vulnerability CVE-2026-81963 · Sep 8, 2026
- SQL Server Microsoft SQL Server Remote Code Execution Vulnerability CVE-2019-1068 · Aug 26, 2026