CVE-2026-21514
Microsoft · Published February 10, 2026
7.8
CVSS v3.1
HIGHCISA KEV — Federal agencies must patch by deadline
Actively exploited in the wild
Patch availableGet patch
Description
Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
Affected Products
- 365 Apps
- Office Long Term Servicing Channel
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H