CVE Catalog
CVE-2026-64909
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk0.35%
28th percentile - higher than 28% of all known CVEs
Summary
Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.
Risk Assessment
An attacker can exploit the arithmetic error to execute malicious code, potentially leading to system compromise.
Recommendation
Install the latest security updates for Microsoft Office.
Original NVD description (English source)
Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.