CVE Catalog
CVE-2026-64921
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk0.83%
54th percentile - higher than 54% of all known CVEs
Summary
Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Risk Assessment
An authorized user can escalate privileges, potentially leading to unauthorized access to sensitive data or administrative functions.
Recommendation
Apply security updates for SharePoint and configure proper authentication mechanisms.
Original NVD description (English source)
Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.