Code Injection in Microsoft 365 Apps for Enterprise and Microsoft Office - CVE-2021-34478

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 download a malicious file and execute arbitrary code on the target system.

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

Affected software

How to mitigate CVE-2021-34478

External References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34478

Related Security Bulletins

• Remote code execution in Microsoft Office