CVE-2018-13458: nagios nagios_core NULL Pointer Dereference
Vulnerability summary
CVE-2018-13458 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in nagios nagios_core. EPSS estimates a 4.45% chance of exploitation in the next 30 days, higher than 91.3% of scored vulnerabilities. 2 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 12-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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 socket.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
4.45%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.45% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 found40F3Daf52950Cca6De28Ebec2498Ff6E
Maturity: poc
Nagios Core 4.4.1 - Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- nagios4< 4.3.4-3
Nagios1 product
- nagios_core≤ 4.4.1
2 vendors · 2 products
References
7 links- gist.github.com/fakhrizulkifli/40f3daf52950cca6de28ebec2498ff6eX Refsource MISCExploitThird Party Advisory
