Vulnerability identifier: #VU70969

Vulnerability risk: High

CVSSv3.1:

CVE-ID: CVE-2023-21734

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Office for Mac
Client/Desktop applications / Office applications
Microsoft Office
Client/Desktop applications / Office applications
Microsoft 365 Apps for Enterprise
Client/Desktop applications / Other client software

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 Office. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Office for Mac: 2019

Microsoft Office: 2019 for Mac

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems

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CPE

• cpe:2.3:a:microsoft:office_mac:2019:*:*:*:*:*:*:*

External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21734

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?