CVE-2026-80112

EUVD-2026-71683

04.09.2026, 19:17

PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain an improper access control vulnerability in the DirectIo64.sys kernel driver that allows unprivileged local users to perform privileged hardware operations by opening a handle to the device object created without a security descriptor. Attackers can issue IOCTLs through the permissive default Windows ACL applied to the device to access restricted hardware operations regardless of privilege or integrity level.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Common Weakness Enumeration

CWE-732 - Incorrect Permission Assignment for Critical Resource
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

References

https://dkom.dev/posts/directio64-disclosure/

https://github.com/floppywiggler/directio64-disclosure

https://www.osforensics.com/whats-new.html

https://www.passmark.com/products/burnintest/history.php

https://www.passmark.com/products/performancetest/history.php

https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-improper-access-control-via-directio64-sys