CVE-2020-15479: Passmark Burnintest

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in PassMark BurnInTest through 9.1, OSForensics through 7.1, and PerformanceTest through 10. The driver's IOCTL request handler attempts to copy the input buffer onto the stack without checking its size and can cause a buffer overflow. This could lead to arbitrary Ring-0 code execution and escalation of privileges. This affects DirectIo32.sys and DirectIo64.sys.

Affected products

• Passmark Burnintest: up to and including 9.1
• Passmark Osforensics: up to and including 7.1
• Passmark Performancetest: up to and including 10.0

Published 2020-08-07. Last modified 2026-06-17.