CVE-2026-80112
PassMark PerformanceTest, BurnInTest, and OSForensics Improper Access Control via DirectIo64.sys
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-732 |
| Vendor | passmark software |
| Product | performancetest |
| Published | Sep 4, 2026 |
| Last Updated | Sep 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
PassMark Software / PerformanceTest
0 < 11.1 build 1012
PassMark Software / BurnInTest
0 < 11.1 build 1000
PassMark Software / OSForensics
0 < 11.1 build 1016
References
github.com: https://github.com/floppywiggler/directio64-disclosure passmark.com: https://www.passmark.com/products/performancetest/history.php passmark.com: https://www.passmark.com/products/burnintest/history.php osforensics.com: https://www.osforensics.com/whats-new.html dkom.dev: https://dkom.dev/posts/directio64-disclosure/ vulncheck.com: https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-improper-access-control-via-directio64-sys
Credits
Emil Sørbrøden