Description
An issue was discovered on FIRSTNUM JC21A-04 devices through 2.01ME/FN that allows authenticated attackers to execute arbitrary OS system commands with root privileges via crafted payloads to the xml_action.cgi?method= endpoint.
References (2)
Core 2
Core References
Various Sources
https://github.com/actuator/cve/tree/main/Firstnum
Scores
CVSS v3
7.4
EPSS
0.0010
EPSS Percentile
26.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-78
Status
published
Published
Aug 05, 2025
Tracked Since
Feb 18, 2026