CVE-2026-80116

Summary

PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a privilege escalation vulnerability in DirectIo64.sys that allows local users to modify hardware configuration by exploiting exposed IOCTLs with no validation on device selection, register offset, or value. Attackers can obtain a device handle and issue arbitrary PCI configuration space read/write operations to enable Bus Master DMA on any PCI device, halt storage controller I/O by clearing command registers, or remap Base Address Registers to redirect DMA to an attacker-chosen physical address.

Affected Software

Weaknesses

• CWE-782: Exposed IOCTL with Insufficient Access Control

References

• https://github.com/floppywiggler/directio64-disclosure
• https://www.passmark.com/products/performancetest/history.php
• https://www.passmark.com/products/burnintest/history.php
• https://www.osforensics.com/whats-new.html
• https://dkom.dev/posts/directio64-disclosure/
• https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-privilege-escalation-via-directio64-sys-ioctl

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