6.9

CVE-2026-80115

Exploit

PassMark PerformanceTest, BurnInTest, and OSForensics Kernel Crash via DirectIo64.sys MSR Write IOCTL

PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a privilege escalation and denial-of-service vulnerability in DirectIo64.sys that allows local attackers to read arbitrary Model-Specific Registers or write zero to any MSR through exposed IOCTLs with insufficient blocklist enforcement. Attackers can exploit the unrestricted write IOCTL to zero out the system call handler MSR, causing an immediate unrecoverable kernel crash on the next system call, or read security-sensitive MSRs used to locate kernel data structures.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerPassMark Software
≫
Produkt PerformanceTest
Default Statusaffected
Version 0
Version < 11.1 build 1012
Status affected
HerstellerPassMark Software
≫
Produkt BurnInTest
Default Statusaffected
Version 0
Version < 11.1 build 1000
Status affected
HerstellerPassMark Software
≫
Produkt OSForensics
Default Statusaffected
Version 0
Version < 11.1 build 1016
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.013
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
disclosure@vulncheck.com 6.9 0 0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
disclosure@vulncheck.com 6.1 1.8 4.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
CWE-782 Exposed IOCTL with Insufficient Access Control

The product implements an IOCTL with functionality that should be restricted, but it does not properly enforce access control for the IOCTL.

https://www.passmark.com/products/performancetest/history.php
https://www.osforensics.com/whats-new.html
https://www.passmark.com/products/burnintest/history.php
https://github.com/floppywiggler/directio64-disclosure
https://dkom.dev/posts/directio64-disclosure/
https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-kernel-crash-via-directio64-sys-msr-write-ioctl