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OpenAdvisories
High · 7.8 CVE-2025-59231 EUVD-2025-34385GHSA-jh8q-f6hp-2rc7

Microsoft Excel Remote Code Execution Vulnerability

Published Oct 14, 2025 · Updated Feb 26, 2026 · Assigned by microsoft

Description

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel 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 Excel 2016 16.0.0.0 – < 16.0.5522.1000 16.0.5522.1000
Microsoft Microsoft Office 2019 19.0.0 – < https://aka.ms/OfficeSecurityReleases https://aka.ms/OfficeSecurityReleases
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 – < 16.102.25101223 16.102.25101223
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 – < 16.102.25101223 16.102.25101223
Microsoft Office Online Server 16.0.0.0 – < 16.0.10417.20059 16.0.10417.20059

Advisories 3

References