# CVE-2025-24009: Missing authorization in SIRIUS 3RK3 Modular Safety System (MSS)

> An attacker with network access can retrieve sensitive information, including obfuscated safety passwords, from Siemens SIRIUS safety devices without authentication.

- **Severity:** High 8.2 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 May 2025
- **Updated:** 13 May 2025
- **Also known as:** GHSA-x7gm-r2wp-mg4v

## What is CVE-2025-24009?

CVE-2025-24009 is a high-severity missing authorization vulnerability in Siemens SIRIUS 3RK3 Modular Safety System (MSS), published on 13 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been identified in SIRIUS 3RK3 Modular Safety System (MSS) (All versions), SIRIUS Safety Relays 3SK2 (All versions). The affected devices do not require authentication to access critical resources. An attacker with network access could retrieve sensitive information from certain data records, including obfuscated safety passwords.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2025-24009?


## How do I fix CVE-2025-24009?

No fix has been published for CVE-2025-24009 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-24009 being exploited?

There is no known exploitation of CVE-2025-24009 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-24009 and fix it if it is affected.

What it is: CVE-2025-24009 is a high-severity missing authorization vulnerability in Siemens SIRIUS 3RK3 Modular Safety System (MSS), published on 13 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-24009 in the wild and no public exploit code.

Affected product: Siemens SIRIUS 3RK3 Modular Safety System (MSS). 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-2025-24009/ (Markdown: https://insights.sbomify.com/CVE-2025-24009/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-24009
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-24009
- OSV: https://osv.dev/vulnerability/CVE-2025-24009

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-24009/
Summaries are generated and may contain mistakes; the official description above is the record.