Skip to content
OpenAdvisories
High · 7.8 CVE-2026-64907 EUVD-2026-56709GHSA-4hxm-v7c3-w944

Microsoft Office Word Remote Code Execution Vulnerability

Published Aug 11, 2026 · Updated Nov 10, 2026 · Assigned by microsoft

Description

Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Affected products

VendorProductAffectedFixed
Microsoft Microsoft 365 Apps for Enterprise 16.0.1 – < https://aka.ms/OfficeSecurityReleases https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office 2019 19.0.0 – < https://aka.ms/OfficeSecurityReleases https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office 365 for Mac 1.0.0 – < 16.112.26081010 16.112.26081010
Microsoft Microsoft Office LTSC 2021 16.0.1 – < https://aka.ms/OfficeSecurityReleases https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office LTSC 2024 16.0.0 – < https://aka.ms/OfficeSecurityReleases https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office LTSC for Mac 2021 16.0.1 – < 16.112.26081010 16.112.26081010
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 – < 16.112.26081010 16.112.26081010
Microsoft Microsoft Word 2016 16.0.1 – < 16.0.5565.1000 16.0.5565.1000

Advisories 3

References