# CVE-2020-36548: GE Voluson S8 Service Browser users.cgi improper authentication

> An attacker with local access can bypass authentication in the GE Voluson S8 Service Browser to gain elevated privileges.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Jun 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-gxpm-c49g-8q5r

## What is CVE-2020-36548?

CVE-2020-36548 is a medium-severity authentication bypass vulnerability in GE Voluson S8, published on 17 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability classified as problematic has been found in GE Voluson S8. Affected is the file /uscgi-bin/users.cgi of the Service Browser. The manipulation leads to improper authentication and elevated access possibilities. It is possible to launch the attack on the local host.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2020-36548?

It affects 1 product.


Products: Ge Voluson S8 Firmware.

## How do I fix CVE-2020-36548?

No fix has been published for CVE-2020-36548 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-36548 being exploited?

There is no known exploitation of CVE-2020-36548 in the wild and no public exploit code.

## Other vulnerabilities in GE Voluson S8

- [CVE-2020-36549](https://insights.sbomify.com/CVE-2020-36549/): GE Voluson S8 Windows Operating System Patches privileges management (high 8.8)
- [CVE-2020-36547](https://insights.sbomify.com/CVE-2020-36547/): GE Voluson S8 Service Browser hard-coded credentials (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-36548 and fix it if it is affected.

What it is: CVE-2020-36548 is a medium-severity authentication bypass vulnerability in GE Voluson S8, published on 17 Jun 2022. 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-2020-36548 in the wild and no public exploit code.

Affected product: GE Voluson S8. 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-2020-36548/ (Markdown: https://insights.sbomify.com/CVE-2020-36548/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-36548
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-36548
- OSV: https://osv.dev/vulnerability/CVE-2020-36548

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-36548/
Summaries are generated and may contain mistakes; the official description above is the record.