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OpenAdvisories
High · 8.8 CVE-2026-97751 EUVD-2026-99815GHSA-585c-r6c8-4vgw

Microsoft Office Excel Remote Code Execution Vulnerability

Published Oct 13, 2026 · Updated Nov 10, 2026 · Assigned by microsoft

Description

Heap-based buffer overflow in Microsoft Office Excel 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 365 for Mac 1.0.0 – < 16.114.26101123 16.114.26101123
Microsoft Microsoft Office LTSC 2021 16.0.1 – < 16.0.14334.20974 16.0.14334.20974
Microsoft Microsoft Office LTSC 2024 16.0.0 – < 16.0.17932.21056 16.0.17932.21056
Microsoft Microsoft Office LTSC for Mac 2021 16.0.1 – < 16.114.26101123 16.114.26101123
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 – < 16.114.26101123 16.114.26101123
Microsoft Office Online Server 16.0.0.0 – < 16.0.10417.20228 16.0.10417.20228

Advisories 3

References