---
id: CVE-2026-80118
title: >-
  PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build
  1000, and OSForensics before 11.1 build 1016 contain an unauthenticated
  physical memory disclosure in DirectIo64.sys, reachable by unprivileged local
  users thr…
summary: >-
  PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build
  1000, and OSForensics before 11.1 build 1016 contain an unauthenticated
  physical memory disclosure in DirectIo64.sys, reachable by unprivileged local
  users thr…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-73
  - CWE-476
  - CWE-497
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: '2026-09-10T16:17:56.837'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80118'
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-kernel-null-pointer-dereference-via-directio64-sys-ioctl
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-10T13:51:52.890415Z'
epss: 0.00166
epssPercentile: 0.05239
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 an unauthenticated physical memory disclosure in DirectIo64.sys, reachable by unprivileged local users through a single IOCTL with no caller-identity check. The handler writes a crash-dump-format (PAGEDU64) image of all physical memory to a caller-supplied file path in the SYSTEM context, allowing a standard user to create files in locations they cannot otherwise write and to recover memory belonging to processes of other users. The image is preceded by a header that exposes the kernel loaded-module list, active-process list and PFN database pointers, defeating KASLR. The same handler also dereferences the return value of an internal kernel-structure locator without a NULL check; that locator returns NULL on three distinct failure paths, and a kernel crash results on builds where any of those paths is taken.

## Remediation

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