CVE Catalog
CVE-2026-42980
HighCVSS 7.8Exploitation Probability (EPSS)
Very high risk6.95%
93th percentile - higher than 93% of all known CVEs
Summary
Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.
Risk Assessment
An authorized user can escalate privileges on the system, potentially leading to full machine compromise and access to sensitive data.
Recommendation
Apply the security update from Microsoft for the Windows NT OS Kernel.
Original NVD description (English source)
Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.