# CVE-2025-41743: Sprecher Automation: SPRECON-E series prone to weak encryption of update files

> A local unprivileged attacker can extract limited architectural information from update images due to insufficient encryption strength in SPRECON-E devices.

- **Severity:** Medium 4.0 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/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:** 2 Dec 2025
- **Updated:** 2 Dec 2025
- **Also known as:** GHSA-v2x4-9r4m-m784

## What is CVE-2025-41743?

CVE-2025-41743 is a medium-severity vulnerability in Sprecher Automation SPRECON-E-C, published on 2 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Insufficient encryption strength in Sprecher Automation SPRECON-E-C, SPRECON-E-P, and SPRECON-E-T3 allows a local unprivileged attacker to extract data from update images and thus obtain limited information about the architecture and internal processes.

Weakness: CWE-326 (Inadequate Encryption Strength)

## Which versions are affected by CVE-2025-41743?

It affects 3 products.


Products: Sprecher-Automation Sprecon-E-C Firmware, Sprecher-Automation Sprecon-E-P Firmware, Sprecher-Automation Sprecon-E-T3 Firmware.

## How do I fix CVE-2025-41743?

No fix has been published for CVE-2025-41743 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-41743 being exploited?

There is no known exploitation of CVE-2025-41743 in the wild and no public exploit code.

## Other vulnerabilities in Sprecher Automation SPRECON-E-C

- [CVE-2025-41742](https://insights.sbomify.com/CVE-2025-41742/): Hardcoded credentials in SPRECON-E-C (critical 9.8)
- [CVE-2022-4333](https://insights.sbomify.com/CVE-2022-4333/): Sprecher: Sprecon maintenance access with hardcoded credentials (critical 9.8)
- [CVE-2025-41744](https://insights.sbomify.com/CVE-2025-41744/): Sprecher Automation: SPRECON-E series has static default key material for TLS connections (critical 9.1)
- [CVE-2022-4332](https://insights.sbomify.com/CVE-2022-4332/): Sprecher: Vulnerable firmware verification (medium 6.8)
- [CVE-2024-6758](https://insights.sbomify.com/CVE-2024-6758/): Improper Privilege Management vulnerability in Sprecher Automation SPRECON-E (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-41743 and fix it if it is affected.

What it is: CVE-2025-41743 is a medium-severity vulnerability in Sprecher Automation SPRECON-E-C, published on 2 Dec 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-2025-41743 in the wild and no public exploit code.

Affected product: Sprecher Automation SPRECON-E-C. 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-2025-41743/ (Markdown: https://insights.sbomify.com/CVE-2025-41743/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-41743
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-41743
- OSV: https://osv.dev/vulnerability/CVE-2025-41743

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-41743/
Summaries are generated and may contain mistakes; the official description above is the record.