CVE-2026-21260
Updated Aug 19, 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 Office 2019 | Microsoft / Microsoft Office 2019 | >= 19.0.0, < https://aka.ms/OfficeSecurityReleases | 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 Outlook 2016 | Microsoft / Microsoft Outlook 2016 | >= 16.0.0.0, < 16.0.5539.1002 | affected |
| Microsoft SharePoint Enterprise Server 2016 | Microsoft / Microsoft SharePoint Enterprise Server 2016 | >= 16.0.0, < 16.0.5539.1002 | affected |
| Microsoft SharePoint Server 2019 | Microsoft / Microsoft SharePoint Server 2019 | >= 16.0.0, < 16.0.10417.20097 | affected |
| Microsoft SharePoint Server Subscription Edition | Microsoft / Microsoft SharePoint Server Subscription Edition | >= 16.0.0, < 16.0.19127.20518 | affected |