PT-2025-31947 · Firstnum · Firstnum Jc21A-04

Actuator · Published 2025-08-05 · Updated 2025-08-05 · CVE-2025-43980

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions FIRSTNUM JC21A-04 devices versions through 2.01ME/FN

Description FIRSTNUM JC21A-04 devices enable the SSH service by default with the credentials root/admin. The graphical user interface (GUI) does not provide a method to disable this account.

Recommendations For versions through 2.01ME/FN, change the default root account password or disable the SSH service.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2025-43980

Affected Products

Firstnum Jc21A-04

References · 5

• 🔥 https://github.com/actuator/cve/blob/main/Firstnum/CVE-2025-43980.txt · Exploit
• 🔥 https://github.com/actuator/cve/tree/main/Firstnum · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-43980 · Security Note
• https://t.me/CVEtracker/29217 · Telegram Post
• https://twitter.com/CVEnew/status/1952781978610332019 · Twitter Post