# CVE-2024-21483: Information disclosure in SENTRON 7KM PAC3120 AC/DC

> An attacker with physical access can read internal flash data due to missing read-out protection during manufacturing.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:P/AC:L/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Mar 2024
- **Updated:** 15 Apr 2025
- **Also known as:** GHSA-cc9x-2646-xv35

## What is CVE-2024-21483?

CVE-2024-21483 is a medium-severity vulnerability in Siemens SENTRON 7KM PAC3120 AC/DC, published on 12 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability has been identified in SENTRON 7KM PAC3120 AC/DC (7KM3120-0BA01-1DA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)), SENTRON 7KM PAC3120 DC (7KM3120-1BA01-1EA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)), SENTRON 7KM PAC3220 AC/DC (7KM3220-0BA01-1DA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)), SENTRON 7KM PAC3220 DC (7KM3220-1BA01-1EA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)). The read out protection of the internal flash of affected devices was not properly set at the end of the manufacturing process.

An attacker with physical access to the device could read out the data.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2024-21483?


## How do I fix CVE-2024-21483?

No fix has been published for CVE-2024-21483 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-21483 being exploited?

There is no known exploitation of CVE-2024-21483 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-21483 and fix it if it is affected.

What it is: CVE-2024-21483 is a medium-severity vulnerability in Siemens SENTRON 7KM PAC3120 AC/DC, published on 12 Mar 2024. 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-2024-21483 in the wild and no public exploit code.

Affected product: Siemens SENTRON 7KM PAC3120 AC/DC. 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-2024-21483/ (Markdown: https://insights.sbomify.com/CVE-2024-21483/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-21483
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-21483
- OSV: https://osv.dev/vulnerability/CVE-2024-21483

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-21483/
Summaries are generated and may contain mistakes; the official description above is the record.