CVE-2026-20963
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
9.8
CVSS 3.1
29.6 %
EPSS (current)
2026-03-18
KEV addition
No
Ransomware
Timeline
Publication, first public exploit and KEV addition on a day axis.
Key facts
Vendor / product: Microsoft / SharePoint
Published: 2026-01-13 · Due (CISA): 2026-03-21
CWE: CWE-502 · EU list: no
Exploit references (metadata only)
No public exploit references recorded.