# CVE-2024-9644: Four-Faith F3x36 bapply.cgi Auth Bypass

> Remote attackers can bypass authentication on the bapply.cgi endpoint to modify router settings without credentials.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 4 Feb 2025
- **Updated:** 19 Nov 2025
- **Also known as:** GHSA-54hp-v955-wr4h

## What is CVE-2024-9644?

CVE-2024-9644 is a critical authentication bypass vulnerability in Four-Faith F3x36, published on 4 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Four-Faith F3x36 router using firmware v2.0.0 is vulnerable to an 
authentication bypass vulnerability in the administrative web server. Authentication is not enforced on some administrative functionality when using the "bapply.cgi" endpoint instead of the normal "apply.cgi" endpoint. A remote and unauthenticated can use this vulnerability to modify settings or chain with existing authenticated vulnerabilities.

Weakness: CWE-489 (Active Debug Code), CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2024-9644?

It affects 1 product.


Products: Four-Faith F3x36 Firmware.

## How do I fix CVE-2024-9644?

No fix has been published for CVE-2024-9644 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-9644 being exploited?

There is no known exploitation of CVE-2024-9644 in the wild and no public exploit code.

## Other vulnerabilities in Four-Faith F3x36

- [CVE-2024-9643](https://insights.sbomify.com/CVE-2024-9643/): Four-Faith F3x36 Hidden Debug Credentials (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-9644 and fix it if it is affected.

What it is: CVE-2024-9644 is a critical authentication bypass vulnerability in Four-Faith F3x36, published on 4 Feb 2025. 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-2024-9644 in the wild and no public exploit code.

Affected product: Four-Faith F3x36. 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-2024-9644/ (Markdown: https://insights.sbomify.com/CVE-2024-9644/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-9644
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-9644
- OSV: https://osv.dev/vulnerability/CVE-2024-9644

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-9644/
Summaries are generated and may contain mistakes; the official description above is the record.