# CVE-2023-2379: Ubiquiti EdgeRouter X Web Service denial of service

> Remote attackers can cause a denial of service on Ubiquiti EdgeRouter X devices via the web service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Apr 2023
- **Updated:** 30 Jan 2025
- **Also known as:** GHSA-mcpg-92rm-rc27

## What is CVE-2023-2379?

CVE-2023-2379 is a high-severity denial of service vulnerability in Ubiquiti EdgeRouter X, published on 28 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability classified as critical has been found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This affects an unknown part of the component Web Service. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-227655.

Weakness: CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2023-2379?

It affects 2 products.


Products: Ui Er-X-Sfp Firmware, Ui Er-X Firmware.

## How do I fix CVE-2023-2379?

No fix has been published for CVE-2023-2379 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2379 being exploited?

There is no known exploitation of CVE-2023-2379 in the wild and no public exploit code.

## Other vulnerabilities in Ubiquiti EdgeRouter X

- [CVE-2023-2374](https://insights.sbomify.com/CVE-2023-2374/): Ubiquiti EdgeRouter X Web Management command injection (high 8.6)
- [CVE-2023-2375](https://insights.sbomify.com/CVE-2023-2375/): Ubiquiti EdgeRouter X Web Management command injection (high 8.6)
- [CVE-2023-2376](https://insights.sbomify.com/CVE-2023-2376/): Ubiquiti EdgeRouter X Web Management command injection (high 8.6)
- [CVE-2023-2377](https://insights.sbomify.com/CVE-2023-2377/): Ubiquiti EdgeRouter X Web Management command injection (high 8.6)
- [CVE-2023-2378](https://insights.sbomify.com/CVE-2023-2378/): Ubiquiti EdgeRouter X Web Management command injection (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2379 and fix it if it is affected.

What it is: CVE-2023-2379 is a high-severity denial of service vulnerability in Ubiquiti EdgeRouter X, published on 28 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-2379 in the wild and no public exploit code.

Affected product: Ubiquiti EdgeRouter X. 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-2023-2379/ (Markdown: https://insights.sbomify.com/CVE-2023-2379/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2379
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2379
- OSV: https://osv.dev/vulnerability/CVE-2023-2379

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2379/
Summaries are generated and may contain mistakes; the official description above is the record.