# CVE-2024-51982: Denial of service in ADS-2400N

> Unauthenticated attackers can crash Brother, Fujifilm, and Ricoh printers by sending malformed PJL commands to TCP port 9100, causing repeated reboots.

- **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:** 25 Jun 2025
- **Updated:** 2 Apr 2026
- **Also known as:** GHSA-7ww7-826p-956x

## What is CVE-2024-51982?

CVE-2024-51982 is a high-severity denial of service vulnerability in Brother Industries, Ltd ADS-2400N, published on 25 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An unauthenticated attacker who can connect to TCP port 9100 can issue a Printer Job Language (PJL) command that will crash the target device. The device will reboot, after which the attacker can reissue the command to repeatedly crash the device. A malformed PJL variable FORMLINES is set to a non number value causing the target to crash.

Weakness: CWE-1286 (Improper Validation of Syntactic Correctness of Input)

## Which versions are affected by CVE-2024-51982?


## How do I fix CVE-2024-51982?

No fix has been published for CVE-2024-51982 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-51982 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-51982 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-51982 and fix it if it is affected.

What it is: CVE-2024-51982 is a high-severity denial of service vulnerability in Brother Industries, Ltd ADS-2400N, published on 25 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-51982 exists.

Affected product: Brother Industries, Ltd ADS-2400N. 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-2024-51982/ (Markdown: https://insights.sbomify.com/CVE-2024-51982/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-51982
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-51982
- OSV: https://osv.dev/vulnerability/CVE-2024-51982

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-51982/
Summaries are generated and may contain mistakes; the official description above is the record.