Microsoft Patch Tuesday: February 2026

In a recent update, Microsoft has identified several vulnerabilities affecting a range of its products, particularly within the Windows Server and Office suites. The vulnerabilities, categorized under various CVE identifiers, have prompted the company to release patches aimed at safeguarding user data and enhancing system security.

Details of Affected Products and Vulnerabilities

The following products have been noted as affected:

  • Windows Server 2025 – Vulnerabilities include CVE-2026-21510, CVE-2026-21513, CVE-2026-21519, CVE-2026-21525, and CVE-2026-21533. Updates are available under article numbers 5075899 and 5075942.
  • Windows Server 2022, 23H2 – Shares the same vulnerabilities as above, with update article number 5075897.
  • Windows Server 2022 – Also affected by the same vulnerabilities, with an update available under article number 5075906.
  • Windows Server 2019 – Vulnerabilities are consistent with those listed, with update article number 5075904.
  • Windows Server 2016 – Similarly affected, with updates available under article number 5075999.
  • Windows Server 2012 R2 – Noted vulnerabilities include CVE-2026-21510, CVE-2026-21513, CVE-2026-21525, and CVE-2026-21533, with update article number 5075970.
  • Windows 11 and Windows 10 – Various versions, including 26H1, 25H2, 24H2, and 22H2, are also impacted by the same vulnerabilities, with respective update articles ranging from 5077179 to 5075912.
  • Microsoft Office LTSC for Mac 2024 and Mac 2021 – Affected by CVE-2026-21514, with release notes available.
  • Microsoft Office LTSC 2024 and 2021 – Vulnerabilities include CVE-2026-21509 and CVE-2026-21514, with release notes provided.
  • Microsoft 365 Apps for Enterprise – Also affected by CVE-2026-21509 and CVE-2026-21514, with release notes available.

This comprehensive list underscores the importance of keeping software up to date to mitigate potential risks associated with these vulnerabilities. Users are encouraged to review their systems and apply the necessary updates to ensure continued security and functionality.

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Microsoft Patch Tuesday: February 2026