Input validation error in Microsoft products - CVE-2021-1716
Published: January 12, 2021
Vulnerability identifier: #VU49431
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-1716
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Office Web Apps Server
Microsoft SharePoint Server
Microsoft Office
Microsoft Word
Microsoft Office Web Apps
Office Online Server
Microsoft Office Web Apps Server
Microsoft SharePoint Server
Microsoft Office
Microsoft Word
Microsoft Office Web Apps
Office Online Server
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to insufficient validation of user-supplied input in Microsoft Word. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the target system.
How to mitigate CVE-2021-1716
Install updates from vendor's website.