CVE-2026-80117PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary I/O Port Access via DirectIo64.sys
Updated under an hour ago ()
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It affects PassMark Software PerformanceTest and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weakness (CWE)
- CWE-782
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
PassMark Software PerformanceTest passmark_software:performancetest (from the name) | before 11.1 build 1012 | CNA record |
PassMark Software BurnInTest passmark_software:burnintest (from the name) | before 11.1 build 1000 | CNA record |
PassMark Software OSForensics passmark_software:osforensics (from the name) | before 11.1 build 1016 | CNA record |
References
- https://github.com/floppywiggler/directio64-disclosuretechnical-description
- https://www.passmark.com/products/performancetest/history.phprelease-notes, patch
- https://www.passmark.com/products/burnintest/history.phprelease-notes, patch
- https://www.osforensics.com/whats-new.htmlrelease-notes, patch
- https://dkom.dev/posts/directio64-disclosure/technical-description
- https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-arbitrary-i-o-port-access-via-directio64-systhird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.