Main Vulnerability Database Vulnerabilities #VU56576

Code Injection in Microsoft 365 Apps for Enterprise and Microsoft Office - CVE-2021-38646

Published: September 14, 2021 / Updated: March 28, 2022

Vulnerability identifier: #VU56576

CSH Severity: High

CVSS v4: 8.4 [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]

CVE-ID: CVE-2021-38646

CWE-ID: CWE-94

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

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 Access Connectivity Engine. A remote attacker can execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

Microsoft 365 Apps for Enterprise
Microsoft Office

How to mitigate CVE-2021-38646

Install updates from vendor's website.

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38646

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