Main Vulnerability Database Vulnerabilities #VU53073

Code Injection in Microsoft products - CVE-2021-31179

Published: May 11, 2021 / Updated: June 22, 2021

Vulnerability identifier: #VU53073

CSH Severity: High

CVSS v4 BT: 7.3 [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/E:P/U:Amber]

CVE-ID: CVE-2021-31179

CWE-ID: CWE-94

Exploitation vector: Remote access

Exploit availability: Public exploit is 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 the 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 Office
Microsoft Excel
Microsoft Office Web Apps Server
Office Online Server

How to mitigate CVE-2021-31179

Install updates from vendor's website.

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31179

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