Code Injection in Microsoft products - CVE-2022-21840
Published: January 11, 2022
Vulnerability identifier: #VU59476
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-21840
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in Microsoft Office. A remote attacker can trick a victim to open a specially crafted file, and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft SharePoint Server
Microsoft Office Web Apps Server
Microsoft Office
Microsoft Excel
Office Online Server
Microsoft Office Web Apps Server
Microsoft Office
Microsoft Excel
Office Online Server
How to mitigate CVE-2022-21840
Install updates from vendor's website.