CVE Catalog
CVE-2026-44820
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk0.37%
29th percentile - higher than 29% of all known CVEs
Summary
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Risk Assessment
An attacker could gain unauthorized access to the system and run malicious software, compromising data confidentiality, integrity, and availability.
Recommendation
Apply the security update provided by Microsoft for Excel immediately and consider implementing policies to restrict opening untrusted files.
Original NVD description (English source)
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.