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.
References (2)
Core 2
Core References
Various Sources
https://github.com/actuator/cve/tree/main/Firstnum
Scores
CVSS v3
6.5
EPSS
0.0008
EPSS Percentile
22.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-284
Status
published
Published
Aug 05, 2025
Tracked Since
Feb 18, 2026