9.3
/ 10
HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
Description
🛡️ CVE-2026-21509 — Microsoft Office Zero-Day Status: Actively exploited → Emergency patch released Severity: 🔴 High Risk Type: Security Feature Bypass --- 🔍 What is it? CVE-2026-21509 is a serious vulnerability in Microsoft Office that allows...
Basic Information
ID
1B0F6E49-273A-5344-90E3-01E0E84E68BE
Published
Jan 27, 2026 at 13:56
Modified
Jan 27, 2026 at 14:51