CVE Catalog
CVE-2026-66805
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk1.58%
73th percentile - higher than 73% of all known CVEs
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Risk Assessment
An authorized user could exploit the vulnerability to take over the SharePoint server.
Recommendation
Apply security patches provided by Microsoft for SharePoint.
Original NVD description (English source)
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.