# CVE-2024-41927: Information disclosure in FC6A Series MICROSmart All-in-One CPU module

> Attackers can obtain user credentials via cleartext transmission on serial ports, leading to PLC program theft and manipulation.

- **Severity:** Medium 4.6 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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:** 4 Sep 2024
- **Updated:** 2 Jul 2025
- **Also known as:** GHSA-q4gj-2fgv-hpxf

## What is CVE-2024-41927?

CVE-2024-41927 is a medium-severity vulnerability in IDEC Corporation FC6A Series MICROSmart All-in-One CPU module, published on 4 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Cleartext transmission of sensitive information vulnerability exists in multiple IDEC PLCs. If an attacker sends a specific command to PLC's serial communication port, user credentials may be obtained. As a result, the program of the PLC may be obtained, and the PLC may be manipulated.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2024-41927?

It affects 91 products.


Products: Idec Ft1a-B12ra Firmware, Idec Ft1a-B24ra Firmware, Idec Ft1a-H12ra Firmware, Idec Ft1a-H12rc Firmware, Idec Ft1a-H24ra Firmware, Idec Ft1a-H24rc Firmware, Idec Ft1a-Pc1 Firmware, Idec Ft1a-Pc2 Firmware, Idec Ft1a-Pc3 Firmware, Idec Ft1a-Pm1 Firmware, Idec Ft9z-1a01 Firmware, Idec Ft9z-Psp1pn05 Firmware, Idec Hg9z-Xcm2a Firmware, Idec Kit-Fc6a-16-Kc Firmware, Idec Kit-Fc6a-16-Kd Firmware, Idec Kit-Fc6a-16-Pc Firmware, Idec Kit-Fc6a-16-Pd Firmware, Idec Kit-Fc6a-16-Ra-Hg1g Firmware, Idec Kit-Fc6a-16-Ra-Hg2g-5tn Firmware, Idec Kit-Fc6a-16-Ra-Hg2g-5tt Firmware and 71 more.

## How do I fix CVE-2024-41927?

No fix has been published for CVE-2024-41927 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-41927 being exploited?

There is no known exploitation of CVE-2024-41927 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-41927 and fix it if it is affected.

What it is: CVE-2024-41927 is a medium-severity vulnerability in IDEC Corporation FC6A Series MICROSmart All-in-One CPU module, published on 4 Sep 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-2024-41927 in the wild and no public exploit code.

Affected product: IDEC Corporation FC6A Series MICROSmart All-in-One CPU module. 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-2024-41927/ (Markdown: https://insights.sbomify.com/CVE-2024-41927/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-41927
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-41927
- OSV: https://osv.dev/vulnerability/CVE-2024-41927

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-41927/
Summaries are generated and may contain mistakes; the official description above is the record.