CVSS v3
9.8
CRITICAL
EPSS Score
67.0%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2018-20434 has not been confirmed. The EPSS score is 67.0%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2018-20434 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).