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.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
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
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.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-51982 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-51982 exists.
Sources
Also known as GHSA-7ww7-826p-956x.