CISA Warns of Actively Exploited Critical SharePoint Vulnerability

The Cybersecurity and Infrastructure Security Agency (CISA) has issued an alert regarding a critical vulnerability in Microsoft SharePoint, identified as CVE-2026-50522. This flaw, which involves deserialization of untrusted data, is actively being exploited by attackers to execute code remotely. CISA is urging organizations to promptly implement vendor-provided mitigations to secure their systems.