---
id: CVE-2026-80113
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 clear arbitrary
  bits at …
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 clear arbitrary
  bits at …
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-782
  - CWE-787
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: '2026-09-10'
sourceUpdated: '2026-09-10T16:17:56.693'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80113'
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-arbitrary-bit-clear-via-directio64-sys-ioctl
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T13:52:07.851608Z'
epss: 0.00111
epssPercentile: 0.01523
ingestedAt: '2026-09-08T21:11:12.295Z'
---

## 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 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.

## Remediation

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