CVE-2026-80113
PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary Bit Clear via DirectIo64.sys IOCTL
CVSS Score
7.1
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 a privilege escalation vulnerability in DirectIo64.sys that allows local users to clear arbitrary bits at any physical memory address due to missing validation of the physical address parameter in an exposed IOCTL handler. Attackers can obtain a device handle and supply an arbitrary 64-bit physical address with a bit index to invoke MmMapIoSpace and clear bits in kernel code pages or page table entries, enabling local privilege escalation or system compromise.
| CWE | CWE-782 CWE-787 |
| Vendor | passmark software |
| Product | performancetest |
| Published | Sep 4, 2026 |
| Last Updated | Sep 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
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-arbitrary-bit-clear-via-directio64-sys-ioctl
Credits
Emil Sørbrøden