CVE-2018-20434

PoC ×2—

CVSS 3.0

9.8 critical

EPSS

71%p99

Published

Apr 24, 2019 (Apr 24, 2019)

Modified

Jun 17, 2026

Description

LibreNMS 1.46 allows remote attackers to execute arbitrary OS commands by using the $_POST['community'] parameter to html/pages/addhost.inc.php during creation of a new device, and then making a /ajax_output.php?id=capture&format=text&type=snmpwalk&hostname=localhost request that triggers html/includes/output/capture.inc.php command mishandling.

Vendors: librenms
Products: librenms
Weakness: CWE-78
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (71.5%)

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