# CVE-2025-69430: Path traversal in n/a

> Attackers can read or modify internal NAS files by inserting a USB drive with a crafted symbolic link, affecting Yottamaster NAS devices.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 3 Feb 2026
- **Updated:** 6 Feb 2026
- **Also known as:** GHSA-2cqf-mg5g-39xv

## What is CVE-2025-69430?

CVE-2025-69430 is a medium-severity path traversal vulnerability in n/a, published on 3 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An Incorrect Symlink Follow vulnerability exists in multiple Yottamaster NAS devices, including DM2 (version equal to or prior to V1.9.12), DM3 (version equal to or prior to V1.9.12), and DM200 (version equal to or prior to V1.2.23) that could be exploited by attackers to leak or tamper with the internal file system. Attackers can format a USB drive to ext4, create a symbolic link to its root directory, insert the drive into the NAS device's slot, then access the USB drive's symlink directory mounted on the NAS to obtain all files within the NAS system and tamper with those files.

Weakness: CWE-59 (Improper Link Resolution Before File Access)

## Which versions are affected by CVE-2025-69430?

It affects 3 products.


Products: Yottamaster Dm200 Firmware, Yottamaster Dm2 Firmware, Yottamaster Dm3 Firmware.

## How do I fix CVE-2025-69430?

No fix has been published for CVE-2025-69430 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-69430 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-69430 exists.

## Other vulnerabilities in n/a

- [CVE-2025-14224](https://insights.sbomify.com/CVE-2025-14224/): Yottamaster DM2/DM3/DM200 File Upload path traversal (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-69430 and fix it if it is affected.

What it is: CVE-2025-69430 is a medium-severity path traversal vulnerability in n/a, published on 3 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-69430 exists.

Affected product: n/a. 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-2025-69430/ (Markdown: https://insights.sbomify.com/CVE-2025-69430/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-69430
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-69430
- OSV: https://osv.dev/vulnerability/CVE-2025-69430

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-69430/
Summaries are generated and may contain mistakes; the official description above is the record.