CVE

CVE-2026-21513

Microsoft MSHTML Framework Protection Mechanism Failure Vulnerability

Microsoft · Windows

Date added (CISA)

2026-02-10

Remediation due

2026-03-03

Known ransomware use

Not indicated

Remediation priority

P2 — past CISA due date

ATT&CK mapping

No ATT&CK mapping yet

The CTID Mappings Explorer hasn't published an exploitation/impact technique mapping for this CVE yet.