# CVE-2025-15245: D-Link DCS-850L Firmware Update Service uploadfirmware path traversal

> A path traversal vulnerability in the D-Link DCS-850L firmware update service allows local network attackers to manipulate file paths, potentially leading to code execution or data exposure.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P`)
- **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:** 30 Dec 2025
- **Updated:** 30 Dec 2025
- **Also known as:** GHSA-vmgr-fvjw-m58r

## What is CVE-2025-15245?

CVE-2025-15245 is a medium-severity path traversal vulnerability in D-Link DCS-850L, published on 30 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability was found in D-Link DCS-850L 1.02.09. Affected is the function uploadfirmware of the component Firmware Update Service. The manipulation of the argument DownloadFile results in path traversal. The attack must originate from the local network. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-15245?

It affects 1 product.


Products: Dlink Dcs-850l Firmware.

## How do I fix CVE-2025-15245?

No fix has been published for CVE-2025-15245 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-15245 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15245 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-15245 and fix it if it is affected.

What it is: CVE-2025-15245 is a medium-severity path traversal vulnerability in D-Link DCS-850L, published on 30 Dec 2025. 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-2025-15245 exists.

Affected product: D-Link DCS-850L. 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-2025-15245/ (Markdown: https://insights.sbomify.com/CVE-2025-15245/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-15245
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-15245
- OSV: https://osv.dev/vulnerability/CVE-2025-15245

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-15245/
Summaries are generated and may contain mistakes; the official description above is the record.