Critical SharePoint Remote Code Execution Vulnerability Actively Exploited in the Wild

A newly disclosed vulnerability, tracked as CVE-2026-50522, is rattling enterprise IT teams as it allows unauthenticated attackers to remotely execute code on on-premises Microsoft SharePoint servers. The flaw carries a critical CVSS score of 9.8 and stems from deserialization of untrusted data, a bug class that has repeatedly plagued SharePoint in 2026. CVE-2026-50522 affects on-premises […] The post Critical SharePoint Remote Code Execution Vulnerability Actively Exploited in the Wild appeared first on Cyber Security News.