Nagios XI OS Command Injection

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

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• cpe nagios/nagios xiversion unspecified
• vendor Nagios Nagios XIversion unspecified

How to fix CVE-2021-25298

• Recommended remediation

  Apply updates per vendor instructions. CISA due date Feb 1, 2022.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • Packet Storm Security · packetstormsecurity.com
  • Packet Storm Security · packetstormsecurity.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Feb 15, 2021 · Catalog

   Detected

   Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/cloud-vm/cloud-vm.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.

2. Jan 18, 2022 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. Feb 1, 2022 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Jul 9, 2026 · Catalog

   Updated

   Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/cloud-vm/cloud-vm.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.

Sources

• CISA KEVConfirmed exploitationCVE-2021-25298

  Nagios XI contains a vulnerability which can lead to OS command injection on the Nagios XI server.

  cisa.gov
• CVE.orgVulnerability recordCVE-2021-25298

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2021-25298

  30-day exploitation probability 73.6%

  first.org
• Metasploit ModulesPublic exploit moduleexploit_linux/http/nagios_xi_configwizards_authenticated_rce

  Public module reference (excellent). Module source is not copied into this catalog.

  rapid7.com
• NIST NVDVulnerability recordCVE-2021-25298

  Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/cloud-vm/cloud-vm.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can l

  nvd.nist.gov
• Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/161561/Nagios-XI-5.7.5-Remote-Code-Execution.html

  Packet Storm link already published on the finding.

  packetstormsecurity.com
• Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/170924/Nagios-XI-5.7.5-Remote-Code-Execution.html

  Packet Storm link already published on the finding.

  packetstormsecurity.com
• VulnCheck KEVConfirmed exploitationCVE-2021-25298

  Nagios XI contains a vulnerability which can lead to OS command injection on the Nagios XI server.

  vulncheck.com

References

• Exploit · packetstormsecurity.com
• Exploit · packetstormsecurity.com
• Product · assets.nagios.com
• Exploit · github.com
• CISA note · nvd.nist.gov
• VulnCheck exploitation evidence · unit42.paloaltonetworks.com
• VulnCheck exploitation evidence · cisa.gov
• Exploit · fastly.com

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.