# CVE-2025-27456: CVE-2025-27456

> Attackers can brute-force SMB login credentials due to missing rate limiting, potentially gaining unauthorized access to the device.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Jul 2025
- **Updated:** 3 Jul 2025
- **Also known as:** GHSA-wwhp-85cv-f9cj

## What is CVE-2025-27456?

CVE-2025-27456 is a high-severity vulnerability in Endress+Hauser MEAC300-FNADE4, published on 3 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The SMB server's login mechanism does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it susceptible to brute-force attacks.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2025-27456?

It affects 1 product.


Products: Endress Meac300-Fnade4 Firmware.

## How do I fix CVE-2025-27456?

No fix has been published for CVE-2025-27456 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-27456 being exploited?

There is no known exploitation of CVE-2025-27456 in the wild and no public exploit code.

## Other vulnerabilities in Endress+Hauser MEAC300-FNADE4

- [CVE-2025-1708](https://insights.sbomify.com/CVE-2025-1708/): CVE-2025-1708 (high 8.6)
- [CVE-2025-27460](https://insights.sbomify.com/CVE-2025-27460/): CVE-2025-27460 (high 7.6)
- [CVE-2025-27461](https://insights.sbomify.com/CVE-2025-27461/): CVE-2025-27461 (high 7.6)
- [CVE-2025-1710](https://insights.sbomify.com/CVE-2025-1710/): CVE-2025-1710 (high 7.5)
- [CVE-2025-27449](https://insights.sbomify.com/CVE-2025-27449/): CVE-2025-27449 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-27456 and fix it if it is affected.

What it is: CVE-2025-27456 is a high-severity vulnerability in Endress+Hauser MEAC300-FNADE4, published on 3 Jul 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-2025-27456 in the wild and no public exploit code.

Affected product: Endress+Hauser MEAC300-FNADE4. 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-2025-27456/ (Markdown: https://insights.sbomify.com/CVE-2025-27456/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-27456
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-27456
- OSV: https://osv.dev/vulnerability/CVE-2025-27456

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-27456/
Summaries are generated and may contain mistakes; the official description above is the record.