Vulnerability identifier: #VU49431
Vulnerability risk: High
CVSSv4.0: [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:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Microsoft Office Web Apps Server
Server applications /
Application servers
Microsoft SharePoint Server
Server applications /
Application servers
Microsoft Office
Client/Desktop applications /
Office applications
Microsoft Word
Client/Desktop applications /
Office applications
Microsoft Office Web Apps
Client/Desktop applications /
Office applications
Office Online Server
Server applications /
Other server solutions
Vendor: Microsoft
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Microsoft Office Web Apps Server: 2013 Service Pack 1
Microsoft SharePoint Server: 2010 - 2019
Microsoft Office: 2010 Service Pack 2, 2019 for Mac - 2019
Office Online Server : 2016
Microsoft Word: 2010, 2013 RT Service Pack 1, 2013 Service Pack 1, 2016
Microsoft Office Web Apps: 2010 Service Pack 2
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1716
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.