CVE-2026-55122
Updated Nov 1, 2026 · PUBLISHED
Description
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Full record on cve.org →Affected packages
| Package | Vendor / Product | Version range | Status |
|---|---|---|---|
| Microsoft 365 Apps for Enterprise | Microsoft / Microsoft 365 Apps for Enterprise | >= 16.0.1, < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft Excel 2016 | Microsoft / Microsoft Excel 2016 | >= 16.0.0.0, < 16.0.5561.1001 | affected |
| Microsoft Office 2019 | Microsoft / Microsoft Office 2019 | >= 19.0.0, < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft Office 365 for Mac | Microsoft / Microsoft Office 365 for Mac | >= 1.0.0, < 16.111.26071215 | affected |
| Microsoft Office LTSC 2021 | Microsoft / Microsoft Office LTSC 2021 | >= 16.0.1, < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft Office LTSC 2024 | Microsoft / Microsoft Office LTSC 2024 | >= 16.0.0, < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft Office LTSC for Mac 2021 | Microsoft / Microsoft Office LTSC for Mac 2021 | >= 16.0.1, < 16.111.26071215 | affected |
| Microsoft Office LTSC for Mac 2024 | Microsoft / Microsoft Office LTSC for Mac 2024 | >= 16.0.0, < 16.111.26071215 | affected |
| Office Online Server | Microsoft / Office Online Server | >= 16.0.0.0, < 16.0.10417.20175 | affected |