CISA Warns of Active Exploitation in Microsoft SharePoint Vulnerabilities

The Cyber Security Agency of Singapore (CSA) has issued an alert regarding the active exploitation of multiple vulnerabilities (CVE-2026-55040 and CVE-2026-63520) in Microsoft SharePoint Server. These flaws could allow unauthorized attackers to bypass security features and execute code over a network, with a proof-of-concept exploit reportedly available. Users and administrators are advised to update immediately.