# CVE-2026-104018: VxWorks 7 improper privilege management

> Authenticated users can bypass command privilege checks in VxWorks 7 shell to execute unauthorized commands, leading to privilege escalation.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Oct 2026
- **Updated:** 2 Oct 2026
- **Also known as:** GHSA-fjrv-5j96-cvhx

## What is CVE-2026-104018?

CVE-2026-104018 is a high-severity vulnerability in Wind River Systems Inc VxWorks 7, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An improper privilege management vulnerability (CWE-269) exists in the command shell of Wind River VxWorks 7 when configured to enforce per-user command privileges. Under certain shell operations, a command may be evaluated without the privilege check that is normally applied, allowing an authenticated user with limited privileges to execute commands they are not authorized to run. Successful exploitation can result in privilege escalation, with impact to the confidentiality, integrity, and availability of the affected device. The issue affects all versions of VxWorks 7 prior to 26.09.  It has been fixed in 26.09.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2026-104018?


## How do I fix CVE-2026-104018?

No fix has been published for CVE-2026-104018 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-104018 being exploited?

There is no known exploitation of CVE-2026-104018 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-104018 and fix it if it is affected.

What it is: CVE-2026-104018 is a high-severity vulnerability in Wind River Systems Inc VxWorks 7, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-104018 in the wild and no public exploit code.

Affected product: Wind River Systems Inc VxWorks 7. 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-2026-104018/ (Markdown: https://insights.sbomify.com/CVE-2026-104018/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-104018
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-104018
- OSV: https://osv.dev/vulnerability/CVE-2026-104018

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-104018/
Summaries are generated and may contain mistakes; the official description above is the record.