What is CVE-2025-43979?

CVE-2025-43979 is a high-severity vulnerability in N/a, classified under OS Command Injection. CVSS score: 7.4/10. Published 2025-08-05.

How severe is CVE-2025-43979?

High severity. CVSS v3 base score is 7.4 out of 10.

Is CVE-2025-43979 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in N/a

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 privileges via crafted payloads to the xml_action.cgi?method= endpoint.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.053 (91.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

actuator/cve

References

Frequently asked questions

What is CVE-2025-43979?: CVE-2025-43979 is a high-severity vulnerability in N/a, classified under OS Command Injection. CVSS score: 7.4/10. Published 2025-08-05.
How severe is CVE-2025-43979?: High severity. CVSS v3 base score is 7.4 out of 10.
Is CVE-2025-43979 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.