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Microsoft Patch Tuesday March 2026: 79 Flaws Fixed, Two Public Zero-Days

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Source: BleepingComputer
Microsoft Patch Tuesday March 2026: 79 Flaws Fixed, Two Public Zero-Days
Photo: BleepingComputer
TL;DR Summary

Microsoft's March 2026 Patch Tuesday closes 79 vulnerabilities, including two publicly disclosed zero-days: a SQL Server elevation-of-privilege flaw (CVE-2026-21262) and a .NET denial-of-service flaw (CVE-2026-26127). The update also patches two Office remote-code-execution flaws via the Preview Pane (CVE-2026-26110, CVE-2026-26113) and an Excel information-disclosure flaw potentially exposing Copilot data (CVE-2026-26144). Fixes span Windows, Edge, Azure, and more, with several critical bugs; users should update promptly.

Topics:business#cve-2026-21262#cve-2026-26127#office#patch-tuesday#security#zero-day
Share this article
  1. Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws  BleepingComputer
  2. Microsoft Patch Tuesday, March 2026 Edition  Krebs on Security
  3. Microsoft Patches 83 Vulnerabilities  SecurityWeek
  4. The March 2026 Security Update Review  Zero Day Initiative
  5. Critical Microsoft Excel bug weaponizes Copilot Agent for zero-click information disclosure attack  theregister.com

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