Command injection in Nagios XI before 5.5.11 allows an authenticated users to execute arbitrary remote commands via a new autodiscovery job.

published 2019-03-28 7y ago modified 2026-06-17 4mo ago also EUVD-2019-18542

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 46.0%; EPSS 46.0% chance of exploitation in 30 days, percentile 98%
public exploits: 0; none known

Patch / fix

fixed in 1

nagios nagios_xi 5.5.11

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Exploit prediction

45.97% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

seclists.org http://seclists.org/fulldisclosure/2019/Apr/19 referenced PoC, tagged "exploit" by a source, unverified
packetstormsecurity.com http://packetstormsecurity.com/files/152496/Nagios-XI-5.5.10-XSS-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

seclists.org /fulldisclosure/2019/Apr/19
mailing-list, exploit, third-party-advisory
packetstormsecurity.com /files/152496/Nagios-XI-5.5.10-XSS-Remote-Code-Execution.html
exploit, third-party-advisory, vdb-entry
nagios.com /products/security/
vendor-advisory
nagios.com /downloads/nagios-xi/change-log/
release-notes, vendor-advisory

Sources

CVE List CVE-2019-9164
NVD CVE-2019-9164

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.