# CVE-2025-59448: Information disclosure in YoLink ecosystem

> Attackers monitoring network traffic can intercept sensitive data or tamper with commands sent to YoLink devices due to unencrypted MQTT communication.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/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:** 6 Oct 2025
- **Updated:** 26 Nov 2025
- **Also known as:** GHSA-wvrh-5769-mm5j

## What is CVE-2025-59448?

CVE-2025-59448 is a medium-severity vulnerability in YoSmart YoLink ecosystem, published on 6 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Components of the YoSmart YoLink ecosystem through 2025-10-02 leverage unencrypted MQTT to communicate over the internet. An attacker with the ability to monitor network traffic could therefore obtain sensitive information or tamper with the traffic to control affected devices. This affects YoLink Hub 0382, YoLink Mobile Application 1.40.41, and YoLink MQTT Broker. NOTE: The vendor states that the vulnerability described (related to insecure transmission) only impacts the legacy mobile application logic, not the Hub hardware or firmware. The Hub functions solely as a pass-through (transparent gateway) for LoRa wireless data and does not inspect or process the application layer data.

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

## Which versions are affected by CVE-2025-59448?


## How do I fix CVE-2025-59448?

No fix has been published for CVE-2025-59448 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59448 being exploited?

There is no known exploitation of CVE-2025-59448 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-59448 and fix it if it is affected.

What it is: CVE-2025-59448 is a medium-severity vulnerability in YoSmart YoLink ecosystem, published on 6 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-2025-59448 in the wild and no public exploit code.

Affected product: YoSmart YoLink ecosystem. 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-2025-59448/ (Markdown: https://insights.sbomify.com/CVE-2025-59448/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59448
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59448
- OSV: https://osv.dev/vulnerability/CVE-2025-59448

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59448/
Summaries are generated and may contain mistakes; the official description above is the record.