CVE-2025-57440 Missing authorization in n/a
An undocumented Telnet service allows unauthenticated attackers to execute arbitrary commands, erase disks, or reboot the device.
- 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-2025-57440?
CVE-2025-57440 is a high-severity missing authorization vulnerability in n/a, published on 22 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Blackmagic ATEM Mini Pro 2.7 exposes an undocumented Telnet service on TCP port 9993, which accepts unauthenticated plaintext commands for controlling streaming, recording, formatting storage devices, and system reboot. This interface, referred to as the "ATEM Ethernet Protocol 1.0", provides complete device control without requiring credentials or encryption. An attacker on the same network (or with remote access to the exposed port) can exploit this interface to execute arbitrary streaming commands, erase disks, or shut down the device - effectively gaining full remote control.
Weakness: CWE-400
Which versions are affected by CVE-2025-57440?
How do I fix CVE-2025-57440?
No fix has been published for CVE-2025-57440 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-57440 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-57440 exists.
Sources
Also known as GHSA-cgfc-2m55-wph7.