---
id: CVE-2026-80116
title: >-
  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 modify hardware
  configur…
summary: >-
  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 modify hardware
  configur…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-782
vendor: PassMark Software
product: PerformanceTest
affected:
  - PerformanceTest < 11.1 build 1012
  - BurnInTest < 11.1 build 1000
  - OSForensics < 11.1 build 1016
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:10:30.270'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80116'
references:
  - url: 'https://dkom.dev/posts/directio64-disclosure/'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/floppywiggler/directio64-disclosure'
    label: disclosure@vulncheck.com
  - url: 'https://www.osforensics.com/whats-new.html'
    label: disclosure@vulncheck.com
  - url: 'https://www.passmark.com/products/burnintest/history.php'
    label: disclosure@vulncheck.com
  - url: 'https://www.passmark.com/products/performancetest/history.php'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-privilege-escalation-via-directio64-sys-ioctl
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00167
epssPercentile: 0.05307
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-08T17:47:23.415398Z'
ingestedAt: '2026-09-08T19:08:49.594Z'
---

## Overview

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 modify hardware configuration by exploiting exposed IOCTLs with no validation on device selection, register offset, or value. Attackers can obtain a device handle and issue arbitrary PCI configuration space read/write operations to enable Bus Master DMA on any PCI device, halt storage controller I/O by clearing command registers, or remap Base Address Registers to redirect DMA to an attacker-chosen physical address.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.