Nagios Core vulnerabilitiesRanked by how likely they are to be used.

Product66 versions
The short answer

Nagios Core is made by Nagios. We track 5 published vulnerabilities in it, across 66 versions. None of them is on the list of flaws known to be exploited today. If you run Nagios Core, keep it on a version the vendor still supports.

See the riskiest flaws

We keep watching the known-exploited list.

Known exploited

Which Nagios Core vulnerabilities are being exploited?

This is the list that matters most: flaws criminals are using now.

None of Nagios Core's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Nagios Core flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 4.5%

    qh_echo in Nagios Core 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attackers to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX...

    CVSS5.5Published12 Jul 2018
  2. 4.5%

    qh_core in Nagios Core 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attackers to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX...

    CVSS5.5Published12 Jul 2018
  3. 2.7%

    Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.

    CVSS8.8Published23 Dec 2020
  4. 2.5%

    Nagios Core 4.4.2 has XSS via the alert summary reports of plugin results, as demonstrated by a SCRIPT element delivered by a modified check_load plugin to NRPE.

    CVSS5.4Published17 Dec 2018
  5. 0.3%

    Nagios Core through 4.3.4 initially executes /usr/sbin/nagios as root but supports configuration options in which this file is owned by a non-root account (and similarly can have nagios.cfg owned by a non-root...

    CVSS7.8Published11 Sep 2017
Precursor Intelligence

Running Nagios Core? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

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FAQ

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We track 5 published vulnerabilities listed under the name Nagios Core, across 66 versions.

None of Nagios Core's vulnerabilities is on the list of flaws known to be exploited today.

Create a Precursor Intelligence account and track Nagios Core. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.