Public PoC triggers active exploitation of critical SharePoint RCE vulnerability CVE-2026-50522
Critical SharePoint RCE vulnerability CVE-2026-50522 is under active exploitation after the release of a PoC exploit code. A critical Microsoft SharePoint vulnerability, tracked as CVE-2026-50522 (CVSS score of 9.8), is being actively exploited following the release of a public proof-of-concept (PoC) code, according to watchTowr researchers. Patched in Microsoft’s July 2026 Patch Tuesday, the deserialization […]
A critical Microsoft SharePoint vulnerability, tracked as CVE-2026-50522 (CVSS score of 9.8), is being actively exploited following the release of a public proof-of-concept (PoC) code, according to watchTowr researchers.
Patched in Microsoft’s July 2026 Patch Tuesday, the deserialization flaw allows authenticated attackers with Site Owner privileges to execute arbitrary code remotely on vulnerable SharePoint servers.
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