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CVE-2026-80117

PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary I/O Port Access via DirectIo64.sys

Published: Sep 4, 2026Updated: Sep 4, 2026 Sources: CVE List NVDCWE-782
7.1HIGH
NVD MITRE
EPSS Score
0.1%
Top 98.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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 issue arbitrary IN and OUT instructions to any x86 I/O port due to missing allowlist or port validation on exposed IOCTLs. Attackers can obtain a device handle and write to sensitive ports including the PS/2 controller port, CPU reset ports, CMOS configuration ports, and interrupt controller ports to cause an immediate system reset or other hardware-level manipulation from a standard user account.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-782

Affected Products

PassMark Software
PerformanceTest
BurnInTest
OSForensics

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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References

https://dkom.dev/posts/directio64-disclosure/
dkom.dev
https://github.com/floppywiggler/directio64-disclosure
github.com
https://www.osforensics.com/whats-new.html
osforensics.com
and 3 more references View all →

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