CVE-2025-43980

MEDIUM

Published Aug 5, 2025 Modified Apr 15, 2026 CWE-284

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.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Weakness Type (CWE)

CWE-284 CWE-284

References

Other References

https://github.com/actuator/cve/blob/main/Firstnum/CVE-2025-43980.txt https://github.com/actuator/cve/tree/main/Firstnum

Frequently Asked Questions

What is CVE-2025-43980? +

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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-43980? +

CVE-2025-43980 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-43980? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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