CVE-2025-43979

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CVSS 3.1

7.4 high

EPSS

6%p92

Published

Aug 5, 2025 (Aug 5, 2025)

Modified

Jun 17, 2026

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.

Weakness: CWE-78
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (5.5%)

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