What’s Vulnerable › Vulnerabilities

CVE-2018-13441

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-07-12 · updated 2026-06-17
• Weakness: CWE-476

Description

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

Affected products

• Nagios Enterprises nagios: through 4.4.1

References

• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00014.html
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00022.html
• https://gist.github.com/fakhrizulkifli/8df4a174158df69ebd765f824bd736b8
• https://knowledge.opsview.com/v5.3/docs/whats-new
• https://knowledge.opsview.com/v5.4/docs/whats-new
• https://www.exploit-db.com/exploits/45082/
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00014.html
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00022.html
• https://gist.github.com/fakhrizulkifli/8df4a174158df69ebd765f824bd736b8
• https://knowledge.opsview.com/v5.3/docs/whats-new
• https://knowledge.opsview.com/v5.4/docs/whats-new
• https://www.exploit-db.com/exploits/45082/

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