CVE-2025-53770: Frequently Asked Questions About Zero-Day SharePoint Vulnerability Exploitation

Successful exploitation of CVE-2025-53770 could expose MachineKey configuration details from a vulnerable SharePoint Server, ultimately enabling unauthenticated remote code execution. Background Tenable’s Research Special Operations (RSO) team has compiled this blog to answer Frequently Asked Questions (FAQ) regarding a zero-day SharePoint Server vulnerability that has been exploited in the wild. FAQ When was the SharePoint exploitation first disclosed? On July 19, reports emerged that Microsoft...

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