# CVE-2025-59459: Denial-of-service (DoS) via resource consumption

> An attacker with SSH access can cause persistent service disruption via resource consumption on SICK TLOC100-100 devices.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Oct 2025
- **Updated:** 27 Feb 2026
- **Also known as:** GHSA-4328-hwx7-x644

## What is CVE-2025-59459?

CVE-2025-59459 is a medium-severity denial of service vulnerability in SICK AG TLOC100-100, published on 27 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An attacker that gains SSH access to an unprivileged account may be able to disrupt services (including SSH), causing persistent loss of availability.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2025-59459?

It affects 1 product.


Products: Sick Tloc100-100 Firmware.

## How do I fix CVE-2025-59459?

No fix has been published for CVE-2025-59459 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59459 being exploited?

There is no known exploitation of CVE-2025-59459 in the wild and no public exploit code.

## Other vulnerabilities in SICK AG TLOC100-100

- [CVE-2025-59461](https://insights.sbomify.com/CVE-2025-59461/): API does not require authentication (high 7.6)
- [CVE-2025-59460](https://insights.sbomify.com/CVE-2025-59460/): Unsecure access configuration (high 7.5)
- [CVE-2025-59462](https://insights.sbomify.com/CVE-2025-59462/): Denial-of-service (DoS) via delayed or missing client response (medium 6.5)
- [CVE-2025-59463](https://insights.sbomify.com/CVE-2025-59463/): Denial-of-service (DoS) via chunk size mismatch (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-59459 and fix it if it is affected.

What it is: CVE-2025-59459 is a medium-severity denial of service vulnerability in SICK AG TLOC100-100, published on 27 Oct 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-2025-59459 in the wild and no public exploit code.

Affected product: SICK AG TLOC100-100. 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-2025-59459/ (Markdown: https://insights.sbomify.com/CVE-2025-59459/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59459
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59459
- OSV: https://osv.dev/vulnerability/CVE-2025-59459

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59459/
Summaries are generated and may contain mistakes; the official description above is the record.