{"id":"CVE-2026-80114","title":"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 …","summary":"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 …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-321"],"published":"2026-09-04","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:10:30.270","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80114","references":[{"url":"https://dkom.dev/posts/directio64-disclosure/","label":"disclosure@vulncheck.com"},{"url":"https://github.com/floppywiggler/directio64-disclosure","label":"disclosure@vulncheck.com"},{"url":"https://www.osforensics.com/whats-new.html","label":"disclosure@vulncheck.com"},{"url":"https://www.passmark.com/products/burnintest/history.php","label":"disclosure@vulncheck.com"},{"url":"https://www.passmark.com/products/performancetest/history.php","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-hard-coded-credentials-authentication-bypass-via-directio64-sys","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00128,"epssPercentile":0.02843,"ingestedAt":"2026-09-08T21:11:12.295Z","slug":"CVE-2026-80114","body":"## Overview\n\nPassMark 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}