CVE-2026-50522
🔥 Known Exploited (CISA KEV)HIGH
8.5
CVSS Severity Score
Vulnerability Description
Microsoft SharePoint is vulnerable to Microsoft SharePoint Deserialization of Untrusted Data Vulnerability . Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Affected Platforms (CPE)
No CPE configurations currently published for this record.