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Vulnerability record · CVE-2026-80112 · published 4 September 2026

CVE-2026-80112: Incorrect permission assignment vulnerability

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.

8.5 CVSS 4.0 High EPSS 0.15% · top 96.5% CWE-732 · Incorrect permission assignment Awaiting Analysis
8.5CVSS 4.0 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
8 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
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-dir

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Source: NIST National Vulnerability Database (record CVE-2026-80112), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.