SharePoint zero-day breach warning sign on server room background

Major SharePoint Zero‑Day Breach Hits ~100 Organisations

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Introduction On July 21, 2025, cybersecurity researchers revealed a widespread zero-day vulnerability in Microsoft SharePoint, which has already been exploited to infiltrate at least 100 organisations worldwide, including U.S. and U.K. government agencies. This critical security flaw, which Microsoft is racing to patch, highlights once again the increasing sophistication and urgency of protecting enterprise collaboration…

Microsoft SharePoint zero-day vulnerability warning on servers

Microsoft SharePoint Zero-Day Exploit Exposes Critical Systems

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A Critical Security Flaw Uncovered On July 16, 2025, cybersecurity researchers confirmed the active exploitation of a newly discovered zero-day vulnerability in Microsoft SharePoint, tracked as CVE‑2025‑53770. The flaw has already been used to compromise at least 75 servers, including critical infrastructure and U.S. government systems. What is CVE‑2025‑53770? The vulnerability allows remote attackers to…