{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80115", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-25T19:56:44.777Z", "datePublished": "2026-09-04T18:35:02.002Z", "dateUpdated": "2026-09-04T18:35:02.002Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-04T18:35:02.002Z"}, "title": "PassMark PerformanceTest, BurnInTest, and OSForensics Kernel Crash via DirectIo64.sys MSR Write IOCTL", "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 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."}], "datePublic": "2026-06-24T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-782", "description": "Exposed IOCTL with Insufficient Access Control", "type": "CWE"}]}], "affected": [{"defaultStatus": "affected", "vendor": "PassMark Software", "product": "PerformanceTest", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThan": "11.1 build 1012"}]}, {"defaultStatus": "affected", "vendor": "PassMark Software", "product": "BurnInTest", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThan": "11.1 build 1000"}]}, {"defaultStatus": "affected", "vendor": "PassMark Software", "product": "OSForensics", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThan": "11.1 build 1016"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "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:L/VI:N/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": "LOW", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H"}}], "references": [{"url": "https://github.com/floppywiggler/directio64-disclosure", "name": "Researcher Disclosure", "tags": ["technical-description", "exploit"]}, {"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-kernel-crash-via-directio64-sys-msr-write-ioctl", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "Emil S\u00f8rbr\u00f8den", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "vulncheck"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "PerformanceTest", "vendor": "PassMark Software", "versions": [{"lessThan": "11.1 build 1012", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "affected", "product": "BurnInTest", "vendor": "PassMark Software", "versions": [{"lessThan": "11.1 build 1000", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "affected", "product": "OSForensics", "vendor": "PassMark Software", "versions": [{"lessThan": "11.1 build 1016", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "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 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."}], "id": "CVE-2026-80115", "lastModified": "2026-09-04T19:17:28.280", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.2, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-09-04T19:17:28.280", "references": [{"source": "disclosure@vulncheck.com", "url": "https://dkom.dev/posts/directio64-disclosure/"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/floppywiggler/directio64-disclosure"}, {"source": "disclosure@vulncheck.com", "url": "https://www.osforensics.com/whats-new.html"}, {"source": "disclosure@vulncheck.com", "url": "https://www.passmark.com/products/burnintest/history.php"}, {"source": "disclosure@vulncheck.com", "url": "https://www.passmark.com/products/performancetest/history.php"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-kernel-crash-via-directio64-sys-msr-write-ioctl"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-782"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

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