# Microsoft SharePoint Zero-Day CVE-2026-56164 Under Active Attack: On-Prem Farms Face Unauthenticated Privilege Escalation

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## Article Metadata
- Title: Microsoft SharePoint Zero-Day CVE-2026-56164 Under Active Attack: On-Prem Farms Face Unauthenticated Privilege Escalation
- Summary: Microsoft SharePoint Zero-Day CVE-2026-56164 Under Active Attack: On-Prem Farms Face Unauthenticated Privilege Escalation
- Published: Jul 15, 2026, 5:04 PM EDT
- Updated: Jul 15, 2026, 5:04 PM EDT
- Category: Research
- Primary topic: Cloud Security
- Authors: Alex Kim
- Read time: 6 min
- Language: en_US
- Publication time zone: America/New_York (U.S. Eastern Time)
- Access: Free to read

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