What’s Vulnerable › Vulnerabilities

CVE-2023-28285: Microsoft Office Remote Code Execution Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-11 · updated 2026-06-17
• Weakness: CWE-416

Description

Microsoft Office Remote Code Execution Vulnerability

Affected products

• Microsoft 365 Apps: all versions
• Microsoft Office: 2019
• Microsoft Office LTSC for Mac 2021: 2021
• Microsoft 365 Apps: from 16.0.1 before https://aka.ms/OfficeSecurityReleases — fixed in https://aka.ms/OfficeSecurityReleases
• Microsoft Office 2019 for Mac: from 16.0.0 before 16.72.23040900 — fixed in 16.72.23040900
• Microsoft Office LTSC for Mac 2021: from 16.0.1 before 16.72.23040900 — fixed in 16.72.23040900

How to fix

Upgrade to a fixed version: Microsoft 365 Apps https://aka.ms/OfficeSecurityReleases; Microsoft Office 2019 for Mac 16.72.23040900; Microsoft Office LTSC for Mac 2021 16.72.23040900. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28285
• http://packetstormsecurity.com/files/173127/Microsoft-Office-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/173140/Microsoft-365-MSO-2305-Build-16.0.16501.20074-Remote-Code-Execution.html
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28285

Get alerted when CVE-2023-28285 or the next vulnerability affects your stack