# CVE-2025-25734: Auth bypass in n/a

> Attackers can execute arbitrary code or escalate privileges via an unauthenticated EFI shell during the boot process of Kapsch TrafficCom Roadside Units.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 26 Aug 2025
- **Updated:** 22 Oct 2025
- **Also known as:** GHSA-6vxr-fv5p-2phr

## What is CVE-2025-25734?

CVE-2025-25734 is a medium-severity authentication bypass vulnerability in n/a, published on 26 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Kapsch TrafficCom RIS-9160 & RIS-9260 Roadside Units (RSUs) v3.2.0.829.23, v3.8.0.1119.42, and v4.6.0.1211.28 was discovered to contain an unauthenticated EFI shell which allows attackers to execute arbitrary code or escalate privileges during the boot process.

Weakness: CWE-284 (Improper Access Control), CWE-1233 (Security-Sensitive Hardware Controls with Missing Lock Bit Protection)

## Which versions are affected by CVE-2025-25734?

It affects 2 products.


Products: Kapsch Ris-9160 Firmware, Kapsch Ris-9260 Firmware.

## How do I fix CVE-2025-25734?

No fix has been published for CVE-2025-25734 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-25734 being exploited?

There is no known exploitation of CVE-2025-25734 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2025-25732](https://insights.sbomify.com/CVE-2025-25732/): Privilege escalation in n/a (medium 6.8)
- [CVE-2025-25736](https://insights.sbomify.com/CVE-2025-25736/): Auth bypass in n/a (medium 6.8)
- [CVE-2025-25737](https://insights.sbomify.com/CVE-2025-25737/): Weak cryptography in n/a (medium 6.8)
- [CVE-2025-25735](https://insights.sbomify.com/CVE-2025-25735/): Security feature bypass in n/a (medium 4.6)
- [CVE-2025-25733](https://insights.sbomify.com/CVE-2025-25733/): Missing authorization in n/a (low 3.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-25734 and fix it if it is affected.

What it is: CVE-2025-25734 is a medium-severity authentication bypass vulnerability in n/a, published on 26 Aug 2025. 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-2025-25734 in the wild and no public exploit code.

Affected product: n/a. 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-2025-25734/ (Markdown: https://insights.sbomify.com/CVE-2025-25734/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-25734
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-25734
- OSV: https://osv.dev/vulnerability/CVE-2025-25734

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-25734/
Summaries are generated and may contain mistakes; the official description above is the record.