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 […]

First seen on securityaffairs.com

Jump to article: securityaffairs.com/195760/security/public-poc-triggers-active-exploitation-of-critical-sharepoint-rce-vulnerability-cve-2026-50522.html