# CVE-2026-80113: PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary Bit Clear via DirectIo64.sys IOCTL

> Local attackers can escalate privileges by exploiting a missing validation flaw in the DirectIo64.sys driver to clear arbitrary physical memory bits.

- **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-xw54-98c9-3f6v

## What is CVE-2026-80113?

CVE-2026-80113 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 clear arbitrary bits at any physical memory address due to missing validation of the physical address parameter in an exposed IOCTL handler. Attackers can obtain a device handle and supply an arbitrary 64-bit physical address with a bit index to invoke MmMapIoSpace and clear bits in kernel code pages or page table entries, enabling local privilege escalation or system compromise.

Weakness: CWE-787 (Out-of-bounds Write), CWE-782 (Exposed IOCTL with Insufficient Access Control)

## Which versions are affected by CVE-2026-80113?


## How do I fix CVE-2026-80113?

No fix has been published for CVE-2026-80113 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-80113 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80113 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-80113 and fix it if it is affected.

What it is: CVE-2026-80113 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80113 exists.

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-2026-80113/ (Markdown: https://insights.sbomify.com/CVE-2026-80113/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-80113
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-80113
- OSV: https://osv.dev/vulnerability/CVE-2026-80113

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-80113/
Summaries are generated and may contain mistakes; the official description above is the record.