CVE-2025-54756 BrightSign Players Use of Default Credentials
Attackers can guess default passwords on BrightSign players to gain unauthorized access and potentially execute code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-54756?
CVE-2025-54756 is a high-severity vulnerability in BrightSign OS series 4 players, published on 12 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
BrightSign players running BrightSign OS series 4 prior to v8.5.53.1 or series 5 prior to v9.0.166 use a default password that is guessable with knowledge of the device information. The latest release fixes this issue for new installations; users of old installations are encouraged to change all default passwords.
Weakness: CWE-1392
Which versions are affected by CVE-2025-54756?
How do I fix CVE-2025-54756?
No fix has been published for CVE-2025-54756 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-54756 being exploited?
There is no known exploitation of CVE-2025-54756 in the wild and no public exploit code.
Sources
Also known as GHSA-j8xr-3xqm-72rh.