CVE-2026-32201: Microsoft SharePoint Server Improper Input Validation Vulnerability

Added to the CISA Known Exploited Vulnerabilities catalog on 14 Apr 2026. Vendor: Microsoft. Product: SharePoint Server.

Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (due 28 Apr 2026)