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TechRadar
TechRadar
Sead Fadilpašić

Microsoft just released its biggest Patch Tuesday ever, with a mammoth 622 fixes including three dangerous zero-days

Hands on a laptop with overlaid logos representing network security.
  • Microsoft’s July 2026 Patch Tuesday fixed a record 622 vulnerabilities, including 58 critical, two exploited in the wild, and one publicly disclosed, plus 428 Chromium bugs
  • Actively abused flaws include CVE‑2026‑56155 (AD FS privilege escalation) and CVE‑2026‑56164 (SharePoint privilege escalation), alongside notable issues in BitLocker and Copilot
  • Surge in fixes is linked to Microsoft’s use of Anthropic’s Mythos AI, with patch volumes rising sharply since its adoption

Microsoft has released its July 2026 Patch Tuesday download, marking another record-breaking update, addressing hundreds of flaws across the ecosystem.

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