CVE Catalog
CVE-2026-66807
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk0.36%
29th percentile - higher than 29% of all known CVEs
Summary
Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Risk Assessment
An attacker could gain control of the system if a user opens a malicious file.
Recommendation
Install the latest security updates for Microsoft Office.
Original NVD description (English source)
Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.