Vulnerability Database

320,453

Total vulnerabilities in the database

CVE-2026-21509

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

  • Published: Jan 26, 2026
  • Updated: Jan 27, 2026
  • CVE: CVE-2026-21509
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWEs: