Microsoft SharePoint Server Vulnerability Enables Remote Code Execution Attacks

Microsoft has disclosed a critical security vulnerability in SharePoint Server that could allow authenticated attackers to execute arbitrary code remotely across multiple versions of the platform. Tracked as CVE-2026-45659 and released on May 21, 2026, the flaw poses a significant risk to organizations running on-premises SharePoint deployments. The vulnerability stems from the deserialization of untrusted […]

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