CVE-2021-43905 CRITICAL

CVE-2021-43905: Microsoft Office app Remote Code Execution Vulnerability

Vendor Microsoft
Product Office app
Published December 15, 2021
Last update May 28, 2026
View on NVD All CVEs

CVSS base score

9.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

What the vulnerability does

01Description

Microsoft Office app Remote Code Execution Vulnerability

Key dates

02Disclosure timeline

December 15, 2021 CVE published
May 28, 2026 Record updated