CVE-2026-21513

Microsoft MSHTML Framework Protection Mechanism Failure Vulnerability
15.9%
EPSS
97%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

Microsoft MSHTML Framework contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.

Vendor
Microsoft
Product
Windows
Added to KEV
Feb 10, 2026
Remediation due
Mar 3, 2026 (US federal deadline)
Ransomware use
Not known
Weakness
CWE-693
EPSS
15.9% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded