# CVE-2026-80117: PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary I/O Port Access via DirectIo64.sys

> Local attackers can escalate privileges or crash the system by accessing arbitrary I/O ports via a vulnerable driver in PassMark utilities.

- **Severity:** Medium 6.9 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Sep 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-p6jp-vch5-mc54

## What is CVE-2026-80117?

CVE-2026-80117 is a medium-severity vulnerability in PassMark Software BurnInTest, published on 4 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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.

Weakness: CWE-782 (Exposed IOCTL with Insufficient Access Control)

## Which versions are affected by CVE-2026-80117?


## How do I fix CVE-2026-80117?

No fix has been published for CVE-2026-80117 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-80117 being exploited?

There is no known exploitation of CVE-2026-80117 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-80117 and fix it if it is affected.

What it is: CVE-2026-80117 is a medium-severity vulnerability in PassMark Software BurnInTest, published on 4 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-80117 in the wild and no public exploit code.

Affected product: PassMark Software BurnInTest. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-80117/ (Markdown: https://insights.sbomify.com/CVE-2026-80117/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-80117
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-80117
- OSV: https://osv.dev/vulnerability/CVE-2026-80117

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-80117/
Summaries are generated and may contain mistakes; the official description above is the record.