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OpenAdvisories
High · 8.8 CVE-2026-69556 EUVD-2026-73139GHSA-m79q-5fg4-88gp

Microsoft Office Word Remote Code Execution Vulnerability

Published Sep 8, 2026 · Updated Nov 10, 2026 · Assigned by microsoft

Description

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

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 – < 16.113.26091433 16.113.26091433
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 – < 16.113.26091433 16.113.26091433
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 – < 16.113.26091433 16.113.26091433
Microsoft Microsoft Word 2016 16.0.1 – < 16.0.5569.1002 16.0.5569.1002

Advisories 2

References