CVE-2026-80112

PassMark PerformanceTest, BurnInTest, and OSForensics Improper Access Control via DirectIo64.sys

HIGH

7.8

CVSS Score

Published: September 4, 2026 at 06:33 PM UTC

Updated: October 1, 2026 at 07:19 PM UTC

3 products affected across 1 vendorPerformanceTestBurnInTestOSForensics

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Severity

HIGH7.8

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

BurnInTest · Passmark

95%

v < 11.1 build 1000v < 11.1.1000

Affected range stops below 11.1 build 1000, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.1.1000, so it looks safe — our inference, not a vendor statement

OSForensics · Passmark

95%

v < 11.1 build 1016v < 11.1.1016

Affected range stops below 11.1 build 1016, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.1.1016, so it looks safe — our inference, not a vendor statement

PerformanceTest · Passmark

95%

v < 11.1 build 1012v < 11.1.1012

Affected range stops below 11.1 build 1012, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.1.1012, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

Technical DescriptionExploit

Source: cverecord

https://github.com/floppywiggler/directio64-disclosure

Release NotesPatch

Source: cverecord

https://www.passmark.com/products/performancetest/history.php

Release NotesPatch

Source: cverecord

https://www.passmark.com/products/burnintest/history.php

Release NotesPatch

Source: cverecord

https://www.osforensics.com/whats-new.html

Technical Description

Source: cverecord

https://dkom.dev/posts/directio64-disclosure/

Third Party Advisory

Source: cverecord

https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-improper-access-control-via-directio64-sys

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHVulnCheck

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-732

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