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See Acknowledgements for more information. Security Updates To determine the support lifecycle for your software, see the Microsoft Support Lifecycle. Release date Descending  Edit columns  Download  Filters  Product Family  Max Severity  Impact  Platform   Clear Release date  Product Platform Impact Max Severity Article Download Build Number Assigning CNA Title: Release date, Content: Sep 8, 2026 Microsoft Word 2016 (64-bit edition) - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Word 2016 (64-bit edition), Content:, 1 link 5002923  Title: Download Security Update for Microsoft Word 2016 (64-bit edition), Content:, 1 link Security Update  Title: Build numbers, Content: 16.0.5569.1000 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Word 2016 (32-bit edition) - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Word 2016 (32-bit edition), Content:, 1 link 5002923  Title: Download Security Update for Microsoft Word 2016 (32-bit edition), Content:, 1 link Security Update  Title: Build numbers, Content: 16.0.5569.1000 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office LTSC for Mac 2024 - Remote Code Execution Critical - - Title: Build numbers, Content: - Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office LTSC 2024 for 32-bit editions - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Office LTSC 2024 for 32-bit editions, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft Office LTSC 2024 for 32-bit editions, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.17932.20976 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office LTSC 2021 for 64-bit editions - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Office LTSC 2021 for 64-bit editions, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft Office LTSC 2021 for 64-bit editions, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.14334.20906 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office LTSC for Mac 2021 - Remote Code Execution Critical - - Title: Build numbers, Content: - Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office LTSC 2024 for 64-bit editions - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Office LTSC 2024 for 64-bit editions, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft Office LTSC 2024 for 64-bit editions, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.17932.20976 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office LTSC 2021 for 32-bit editions - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Office LTSC 2021 for 32-bit editions, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft Office LTSC 2021 for 32-bit editions, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.14334.20906 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft 365 Apps for Enterprise for 32-bit Systems - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft 365 Apps for Enterprise for 32-bit Systems, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft 365 Apps for Enterprise for 32-bit Systems, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.20326.20138 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft 365 Apps for Enterprise for 64-bit Systems - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft 365 Apps for Enterprise for 64-bit Systems, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft 365 Apps for Enterprise for 64-bit Systems, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.20326.20138 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office 2019 for 64-bit editions - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Office 2019 for 64-bit editions, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft Office 2019 for 64-bit editions, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.10417.20207 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office 2019 for 32-bit editions - Remote Code Execution Critical Title: Knowledge Base Articles for Microsoft Office 2019 for 32-bit editions, Content:, 1 link Release Notes  Title: Download Security Update for Microsoft Office 2019 for 32-bit editions, Content:, 1 link Security Update Title: Build numbers, Content: 16.0.10417.20207 Title: Assigning CNA, Content: Microsoft Title: Release date, Content: Sep 8, 2026 Microsoft Office 365 for Mac - Remote Code Execution Critical - - Title: Build numbers, Content: - Title: Assigning CNA, Content: Microsoft All results loaded Loaded all 13 rows Disclaimer The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. 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