Threat Intelligence318 CVE-2026-50522: Unauthenticated Deserialization RCE in Microsoft SharePoint Server — Advisory and Nuclei Detection
CVE-2026-50522 is a critical (CVSS 9.8) unauthenticated, pre-auth deserialization RCE in on-premises Microsoft SharePoint Server. A single crafted WS-Federation POST to /_trust/default.aspx…









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