CVE-2026-80114PassMark PerformanceTest, BurnInTest, and OSForensics Hard-coded Credentials Authentication Bypass 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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PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a hard-coded credentials vulnerability in DirectIo64.sys that allows local attackers to perform arbitrary physical memory writes by extracting an 8-byte key embedded as a hardcoded literal in the distributed binary and computing valid MD5 authentication tags for arbitrary IOCTL write requests. Attackers can additionally bypass a secondary validation gate by using the driver's own bit-clear IOCTL to clear a single bit in the gating instruction's displacement byte, causing all subsequent write requests to skip MAC verification, size checks, and Vendor ID checks entirely.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-321
- 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, exploit
- 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-hard-coded-credentials-authentication-bypass-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.