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M365 Show - Microsoft 365 Digital Workplace Daily

Microsoft Security Pulse: Protect, Detect, Defend

Behind the Curtain of the July 2025 SharePoint Zero Day: My Unfiltered Take

Mirko Peters - M365 Specialist's avatar
Mirko Peters - M365 Specialist
Jul 26, 2025
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Before last week, I would’ve put betting money on July being a quiet month—until the SharePoint zero-day (CVE-2025-53770) explosion hit. Sitting at my desk, half-writing a script and half-daydreaming about DEFCON, I watched as Slack and Twitter lit up with panicked questions. What was most unsettling? The sense that we were watching history repeat—again…

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