CVE-2026-21514

high-risk
Published 2026-02-10

Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.

Do I need to act?

~
4.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
!
CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (8)

Affected Vendors

Microsoft

References (2)

Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-...
52
/ 100
high-risk
Severity 24/34 · High
Exploitability 14/34 · Moderate
Exposure 14/34 · Moderate