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OpenAdvisories
High · 8.8 CVE-2026-123385 EUVD-2026-122299GHSA-c4m3-5gg4-g6fp

Microsoft Office Excel Remote Code Execution Vulnerability

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

Description

Stack-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 LTSC 2021 16.0.1 – < 16.0.14334.21048 16.0.14334.21048
Microsoft Microsoft Office LTSC 2024 16.0.0 – < 16.0.17932.21140 16.0.17932.21140

Advisories 2

References