# CVE-2024-30321: Information disclosure in SIMATIC PCS 7 V9.1

> Unauthenticated remote attackers can retrieve privileged information, including user credentials, from affected Siemens SCADA and HMI web applications.

- **Severity:** High 8.2 (`CVSS:4.0/AV:N/AC:L/AT:P/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:** 9 Jul 2024
- **Updated:** 27 Aug 2025
- **Also known as:** GHSA-x843-fv8x-w437

## What is CVE-2024-30321?

CVE-2024-30321 is a high-severity vulnerability in Siemens SIMATIC PCS 7 V9.1, published on 9 Jul 2024. 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 SIMATIC PCS 7 V9.1 (All versions < V9.1 SP2 UC05), SIMATIC WinCC Runtime Professional V18 (All versions < V18 Update 5), SIMATIC WinCC Runtime Professional V19 (All versions < V19 Update 2), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 23), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 17), SIMATIC WinCC V8.0 (All versions < V8.0 Update 5). The affected products do not properly handle certain requests to their web application, which may lead to the leak of privileged information.
This could allow an unauthenticated remote attacker to retrieve information such as users and passwords.

Weakness: CWE-359 (Exposure of Private Personal Information to an Unauthorized Actor)

## Which versions are affected by CVE-2024-30321?


## How do I fix CVE-2024-30321?

No fix has been published for CVE-2024-30321 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-30321 being exploited?

There is no known exploitation of CVE-2024-30321 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-30321 and fix it if it is affected.

What it is: CVE-2024-30321 is a high-severity vulnerability in Siemens SIMATIC PCS 7 V9.1, published on 9 Jul 2024. 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-2024-30321 in the wild and no public exploit code.

Affected product: Siemens SIMATIC PCS 7 V9.1. 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-2024-30321/ (Markdown: https://insights.sbomify.com/CVE-2024-30321/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-30321
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-30321
- OSV: https://osv.dev/vulnerability/CVE-2024-30321

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-30321/
Summaries are generated and may contain mistakes; the official description above is the record.