# CVE-2025-55581: Privilege escalation in n/a

> An attacker with filesystem access can replace monitored binaries to achieve persistent root code execution on D-Link cameras.

- **Severity:** High 7.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L`)
- **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:** 22 Aug 2025
- **Updated:** 22 Aug 2025
- **Also known as:** GHSA-289x-93wc-65xg

## What is CVE-2025-55581?

CVE-2025-55581 is a high-severity vulnerability in n/a, published on 22 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

D-Link DCS-825L firmware version 1.08.01 and possibly prior versions contain an insecure implementation in the mydlink-watch-dog.sh script. The script monitors and respawns the `dcp` and `signalc` binaries without validating their integrity, origin, or permissions. An attacker with filesystem access (e.g., via UART or firmware modification) may replace these binaries to achieve persistent arbitrary code execution with root privileges. The issue stems from improper handling of executable trust and absence of integrity checks in the watchdog logic.

Weakness: CWE-494 (Download of Code Without Integrity Check), CWE-306 (Missing Authentication for Critical Functionality), CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2025-55581?

It affects 1 product.


Products: Dlink Dcs-825l Firmware.

## How do I fix CVE-2025-55581?

No fix has been published for CVE-2025-55581 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-55581 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55581 exists.

## Other vulnerabilities in n/a

- [CVE-2025-55582](https://insights.sbomify.com/CVE-2025-55582/): D-Link DCS-825L firmware v1.08.01 contains a vulnerability in the watchdog script `mydlink-watch-dog.sh`, which blindly respawns binaries su (medium 6.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-55581 and fix it if it is affected.

What it is: CVE-2025-55581 is a high-severity vulnerability in n/a, published on 22 Aug 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-2025-55581 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-2025-55581/ (Markdown: https://insights.sbomify.com/CVE-2025-55581/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-55581
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-55581
- OSV: https://osv.dev/vulnerability/CVE-2025-55581

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-55581/
Summaries are generated and may contain mistakes; the official description above is the record.