What’s Vulnerable › Vulnerabilities

CVE-2018-8735

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 63.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-04-18 · updated 2026-06-17
• Weakness: CWE-78

Description

Remote command execution (RCE) vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to execute arbitrary commands on the target system, aka OS command injection.

Affected products

• Nagios XI: from 5.2.0 before 5.4.13 — fixed in 5.4.13

How to fix

Upgrade to a fixed version: Nagios XI 5.4.13. Check the vendor advisory for mitigations.

References

• https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT
• https://blog.redactedsec.net/exploits/2018/04/26/nagios.html
• https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0f
• https://www.exploit-db.com/exploits/44560/
• https://www.exploit-db.com/exploits/44969/
• https://www.nagios.com/downloads/nagios-xi/change-log/
• https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT
• https://blog.redactedsec.net/exploits/2018/04/26/nagios.html
• https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0f
• https://www.exploit-db.com/exploits/44560/
• https://www.exploit-db.com/exploits/44969/
• https://www.nagios.com/downloads/nagios-xi/change-log/

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