# CVE-2025-14187: UGREEN DH2100+ nas_svr create handler_file_backup_create buffer overflow

> Remote attackers can trigger a buffer overflow in the UGREEN DH2100+ NAS backup handler, potentially leading to code execution or service disruption.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Dec 2025
- **Updated:** 28 Jan 2026
- **Also known as:** GHSA-mx5f-4vx4-2f5r

## What is CVE-2025-14187?

CVE-2025-14187 is a high-severity memory corruption vulnerability in UGREEN DH2100+, published on 7 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A weakness has been identified in UGREEN DH2100+ up to 5.3.0.251125. This affects the function handler_file_backup_create of the file /v1/file/backup/create of the component nas_svr. Executing a manipulation of the argument path can lead to buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. It is recommended to upgrade the affected component.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2025-14187?


## How do I fix CVE-2025-14187?

No fix has been published for CVE-2025-14187 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-14187 being exploited?

There is no known exploitation of CVE-2025-14187 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-14187 and fix it if it is affected.

What it is: CVE-2025-14187 is a high-severity memory corruption vulnerability in UGREEN DH2100+, published on 7 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-14187 in the wild and no public exploit code.

Affected product: UGREEN DH2100+. 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-2025-14187/ (Markdown: https://insights.sbomify.com/CVE-2025-14187/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-14187
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14187
- OSV: https://osv.dev/vulnerability/CVE-2025-14187

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-14187/
Summaries are generated and may contain mistakes; the official description above is the record.