CVE Catalog
CVE-2026-63513
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk0.36%
29th percentile - higher than 29% of all known CVEs
Summary
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Risk Assessment
An attacker could take control of the system running Office, potentially leading to data theft or malware installation.
Recommendation
Install the latest security updates for Microsoft Office.
Original NVD description (English source)
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.