# CVE-2026-80114

## Summary

- **CVE ID:** CVE-2026-80114
- **Severity:** HIGH
- **CVSS Score:** 8.5 (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)
- **CWE:** CWE-321
- **Published:** Sep 4, 2026
- **Last Modified:** Sep 4, 2026

## Description

PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a hard-coded credentials vulnerability in DirectIo64.sys that allows local attackers to perform arbitrary physical memory writes by extracting an 8-byte key embedded as a hardcoded literal in the distributed binary and computing valid MD5 authentication tags for arbitrary IOCTL write requests. Attackers can additionally bypass a secondary validation gate by using the driver's own bit-clear IOCTL to clear a single bit in the gating instruction's displacement byte, causing all subsequent write requests to skip MAC verification, size checks, and Vendor ID checks entirely.

## Affected Products

- PassMark Software — PerformanceTest (0)
- PassMark Software — BurnInTest (0)
- PassMark Software — OSForensics (0)

## References

- [CNA](https://github.com/floppywiggler/directio64-disclosure)
- [CNA](https://www.passmark.com/products/performancetest/history.php)
- [CNA](https://www.passmark.com/products/burnintest/history.php)
- [CNA](https://www.osforensics.com/whats-new.html)
- [CNA](https://dkom.dev/posts/directio64-disclosure/)
- [CNA](https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-hard-coded-credentials-authentication-bypass-via-directio64-sys)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 2.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._