{"id":"CVE-2026-80117","state":"PUBLISHED","title":"PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary I/O Port Access via DirectIo64.sys","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.","publishedAt":"2026-09-04T18:36:18.771Z","updatedAt":"2026-10-01T19:19:34.935Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["PassMark Software PerformanceTest","PassMark Software BurnInTest","PassMark Software OSForensics"],"affected":[{"vendor":"PassMark Software","product":"PerformanceTest","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"11.1 build 1012","versionType":"custom"}]},{"vendor":"PassMark Software","product":"BurnInTest","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"11.1 build 1000","versionType":"custom"}]},{"vendor":"PassMark Software","product":"OSForensics","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"11.1 build 1016","versionType":"custom"}]}],"references":["https://github.com/floppywiggler/directio64-disclosure","https://www.passmark.com/products/performancetest/history.php","https://www.passmark.com/products/burnintest/history.php","https://www.osforensics.com/whats-new.html","https://dkom.dev/posts/directio64-disclosure/","https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-arbitrary-i-o-port-access-via-directio64-sys"],"weaknesses":["CWE-782"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80117.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80117","state":"PUBLISHED","datePublished":"2026-09-04T18:36:18.771Z","dateUpdated":"2026-10-01T19:19:34.935Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-25T19:56:44.777Z"},"containers":{"cna":{"title":"PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary I/O Port Access via DirectIo64.sys","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"PassMark Software","product":"PerformanceTest","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"11.1 build 1012","versionType":"custom"}]},{"vendor":"PassMark Software","product":"BurnInTest","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"11.1 build 1000","versionType":"custom"}]},{"vendor":"PassMark Software","product":"OSForensics","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"11.1 build 1016","versionType":"custom"}]}],"references":[{"url":"https://github.com/floppywiggler/directio64-disclosure","name":"Researcher Disclosure","tags":["technical-description"]},{"url":"https://www.passmark.com/products/performancetest/history.php","name":"PerformanceTest Changelog","tags":["release-notes","patch"]},{"url":"https://www.passmark.com/products/burnintest/history.php","name":"BurnInTest Changelog","tags":["release-notes","patch"]},{"url":"https://www.osforensics.com/whats-new.html","name":"OSForensics Changelog","tags":["release-notes","patch"]},{"url":"https://dkom.dev/posts/directio64-disclosure/","name":"Technical Analysis and Decompiled Evidence","tags":["technical-description"]},{"url":"https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-arbitrary-i-o-port-access-via-directio64-sys","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.9,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH","version":"3.1","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-782","lang":"en","description":"Exposed IOCTL with Insufficient Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-01T19:19:34.935Z"},"datePublic":"2026-06-24T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:passmark:performancetest:*:*:*:*:*:*:*:*","versionEndExcluding":"11.1.1012"},{"vulnerable":true,"criteria":"cpe:2.3:a:passmark:burnintest:*:*:*:*:*:*:*:*","versionEndExcluding":"11.1.1000"},{"vulnerable":true,"criteria":"cpe:2.3:a:passmark:osforensics:*:*:*:*:*:*:*:*","versionEndExcluding":"11.1.1016"}]}]}],"credits":[{"lang":"en","value":"Emil Sørbrøden","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"vulncheck"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-04T18:53:15.285367Z","id":"CVE-2026-80117","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-04T18:53:49.438Z"}}]}}}