Vulnerability-Lookup

GHSA-P6JP-VCH5-MC54

Vulnerability from github – Published: 2026-09-04 21:31 – Updated: 2026-09-04 21:31

Details

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.

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

6.9 (Medium)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80117"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-782"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T19:17:28Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-p6jp-vch5-mc54",
  "modified": "2026-09-04T21:31:50Z",
  "published": "2026-09-04T21:31:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80117"
    },
    {
      "type": "WEB",
      "url": "https://dkom.dev/posts/directio64-disclosure"
    },
    {
      "type": "WEB",
      "url": "https://github.com/floppywiggler/directio64-disclosure"
    },
    {
      "type": "WEB",
      "url": "https://www.osforensics.com/whats-new.html"
    },
    {
      "type": "WEB",
      "url": "https://www.passmark.com/products/burnintest/history.php"
    },
    {
      "type": "WEB",
      "url": "https://www.passmark.com/products/performancetest/history.php"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-arbitrary-i-o-port-access-via-directio64-sys"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-80117 (GCVE-0-2026-80117)

Vulnerability from cvelistv5 – Published: 2026-09-04 18:36 – Updated: 2026-09-04 18:53

Title

PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary I/O Port Access via DirectIo64.sys

Summary

Severity

6.9 (Medium)


                        
                          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

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 18:53 UTC

CWE

CWE-782 - Exposed IOCTL with Insufficient Access Control

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://github.com/floppywiggler/directio64-disclosure	technical-description
https://www.passmark.com/products/performancetest…	release-notespatch
https://www.passmark.com/products/burnintest/hist…	release-notespatch
https://www.osforensics.com/whats-new.html	release-notespatch
https://dkom.dev/posts/directio64-disclosure/	technical-description
https://www.vulncheck.com/advisories/passmark-per…	third-party-advisory

Impacted products

3 products

Vendor	Product	Version
PassMark Software	PerformanceTest	Affected: 0 , < 11.1 build 1012 (custom)
PassMark Software	BurnInTest	Affected: 0 , < 11.1 build 1000 (custom)
PassMark Software	OSForensics	Affected: 0 , < 11.1 build 1016 (custom)

Date Public

2026-06-24 00:00

Credits

Emil Sørbrøden

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-80117",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-04T18:53:15.285367Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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      "credits": [
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      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
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            "attackVector": "LOCAL",
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            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "confidentialityImpact": "NONE",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-P6JP-VCH5-MC54

CVE-2026-80117 (GCVE-0-2026-80117)

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Sightings

Nomenclature

Related by attack behaviour