CVE-2025-43980 Hardcoded credentials in n/a
Attackers can gain root access via default SSH credentials on FIRSTNUM JC21A-04 devices, as the account cannot be disabled through the GUI.
- 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-2025-43980?
CVE-2025-43980 is a medium-severity vulnerability in n/a, published on 5 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered on FIRSTNUM JC21A-04 devices through 2.01ME/FN. They enable the SSH service by default with the credentials of root/admin. The GUI doesn't offer a way to disable the account.
Weakness: CWE-284
Which versions are affected by CVE-2025-43980?
How do I fix CVE-2025-43980?
No fix has been published for CVE-2025-43980 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-43980 being exploited?
There is no known exploitation of CVE-2025-43980 in the wild and no public exploit code.
Sources
Also known as GHSA-25mg-44x8-hvmp.