CVE-2025-43979

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…

High · published August 5, 2025

CVSS v3.1
7.4
EPSS
6%
Percentile
93.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.06460 · 93.7th percentile
Published
2025-08-05T00:00Z
EPSS history
Timeline
  • 05 AUG 00:00Z
    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…
    cvelistv5