VULNERABILITY INTELLIGENCE
CVE-2026-21509
CVSS score7.8 HIGH
EPSS probability70.80%
CISA KEVKnown exploited vulnerability
Published2026-01-26
Last modified2026-06-25
Known Exploited Vulnerability
Microsoft Office Security Feature Bypass Vulnerability
Vendor / product: Microsoft / Office
Description
Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally.