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OpenAdvisories
Medium · 5.9 CVE-2026-123395 EUVD-2026-122301GHSA-23fc-cg79-gqv2

Microsoft Office Excel Information Disclosure Vulnerability

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

Description

Improper control of generation of code ('code injection') in Microsoft Office Excel allows an authorized attacker to disclose information locally.

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 – < 16.115.26110837 16.115.26110837
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
Microsoft Microsoft Office LTSC for Mac 2021 16.0.1 – < 16.115.26110837 16.115.26110837
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 – < 16.115.26110837 16.115.26110837

Advisories 2

References