CVE Catalog
CVE-2026-70321
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk1.25%
67th percentile - higher than 67% of all known CVEs
Summary
A deserialization of untrusted data vulnerability in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Risk Assessment
An authorized attacker can remotely execute arbitrary code on the server, potentially leading to full system compromise and data access.
Recommendation
Update Microsoft Office SharePoint to the latest version containing the security fix.
Original NVD description (English source)
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.