# CVE-2025-29846: Path traversal in Synology Router Manager (SRM)

> Authenticated attackers can exploit a path traversal flaw in portable CGI to read the status of installed packages on Synology routers.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Dec 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-fqr7-3p5f-v322

## What is CVE-2025-29846?

CVE-2025-29846 is a high-severity path traversal vulnerability in Synology Router Manager, published on 4 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability in portenable cgi allows remote authenticated users to get the status of installed packages.

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

## Which versions are affected by CVE-2025-29846?

It affects 1 product.


Products: Synology Router Manager.

## How do I fix CVE-2025-29846?

No fix has been published for CVE-2025-29846 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-29846 being exploited?

There is no known exploitation of CVE-2025-29846 in the wild and no public exploit code.

## Other vulnerabilities in Synology Router Manager

- [CVE-2023-32956](https://insights.sbomify.com/CVE-2023-32956/): Command injection in Synology Router Manager (SRM) (critical 9.8)
- [CVE-2020-27654](https://insights.sbomify.com/CVE-2020-27654/): Command injection in Synology Router Manager (SRM) (critical 9.8)
- [CVE-2019-11823](https://insights.sbomify.com/CVE-2019-11823/): Denial of service in Synology Router Manager (SRM) (high 8.6)
- [CVE-2020-27649](https://insights.sbomify.com/CVE-2020-27649/): Security feature bypass in Synology Router Manager (SRM) (high 8.3)
- [CVE-2024-11398](https://insights.sbomify.com/CVE-2024-11398/): Path traversal in Synology Router Manager (SRM) (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-29846 and fix it if it is affected.

What it is: CVE-2025-29846 is a high-severity path traversal vulnerability in Synology Router Manager, published on 4 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-29846 in the wild and no public exploit code.

Affected product: Synology Router Manager. 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-2025-29846/ (Markdown: https://insights.sbomify.com/CVE-2025-29846/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-29846
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-29846
- OSV: https://osv.dev/vulnerability/CVE-2025-29846

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-29846/
Summaries are generated and may contain mistakes; the official description above is the record.