cve detail

CVE-2026-21513

naam

Microsoft MSHTML Framework Protection Mechanism Failure Vulnerability

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

KEV

bekend misbruikt

EPSS

28%

percentiel

97%

vendor

Microsoft

product

Windows

toegevoegd aan KEV

10 feb 2026

due date

03 mrt 2026

ransomware

Unknown

CWE

CWE-693

EPSS datum

12 mei 2026

aanbevolen actie

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

notities

https://msrc.microsoft.com/update-guide/advisory/CVE-2026-21513 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21513