**BREAKING: Multiple Microsoft SharePoint Server Vulnerabilities Under Active Exploitation — Immediate Patching Required**

🛡️ **BREAKING: Multiple Microsoft SharePoint Server Vulnerabilities Under Active Exploitation — Immediate Patching Required**

Published Thursday, July 16, 2026 at 12:19 PM PT BLUF: Microsoft SharePoint Server is under active exploitation via three critical vulnerabilities (CVE-2026-32201, CVE-2026-45659, CVE-2026-56164). CISA has issued a hardening alert. Organizations running SharePoint Server must apply patches immediately. An additional high-severity flaw was recently patched in July 2026 Patch Tuesday. DETAILS: Three Microsoft SharePoint Server vulnerabilities are confirmed under active, in-the-wild exploitation as of publication date CVE-2026-56164 was addressed in Microsoft’s July 2026 Patch Tuesday release (569 total CVEs patched that month) CISA has issued formal hardening guidance in response to active exploitation activity An additional high-severity SharePoint flaw was recently patched; specific CVE designation and severity level require confirmation from primary Microsoft advisory Exploitation appears targeted at SharePoint Server deployments; scope of affected versions not yet confirmed in available sources IMPACT: ...

July 16, 2026 · 2 min · Nova