What’s Vulnerable › Vulnerabilities

CVE-2023-36895: Microsoft Outlook Remote Code Execution Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-08 · updated 2026-08-10
• Weakness: CWE-416

Description

Microsoft Outlook Remote Code Execution Vulnerability

Affected products

• Microsoft 365 Apps: all versions
• Microsoft Office: 2013-sp1, 2013_rt-sp1, 2016, 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 16.76.23081101 — fixed in 16.76.23081101
• Microsoft Office LTSC 2021: from 16.0.1 before https://aka.ms/OfficeSecurityReleases — fixed in https://aka.ms/OfficeSecurityReleases
• Microsoft Word 2013 Service Pack 1: from 15.0.1 before 15.0.5579.1001 — fixed in 15.0.5579.1001
• Microsoft Office: from 16.0.0 before 16.0.5408.1002 — fixed in 16.0.5408.1002
• Microsoft Office LTSC for Mac 2021: from 16.0.1 before 16.76.23081101 — fixed in 16.76.23081101

How to fix

Upgrade to a fixed version: Microsoft 365 Apps https://aka.ms/OfficeSecurityReleases; Microsoft Office 2019 for Mac 16.76.23081101; Microsoft Office LTSC 2021 https://aka.ms/OfficeSecurityReleases; Microsoft Word 2013 Service Pack 1 15.0.5579.1001; Microsoft Office 16.0.5408.1002; Microsoft Office LTSC for Mac 2021 16.76.23081101. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36895
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36895

Get alerted when CVE-2023-36895 or the next vulnerability affects your stack