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Fencer Vulns
high 8.8

CVE-2018-8736 in the critical feed json

A privilege escalation vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to leverage an RCE vulnerability esc…

published 2018-04-18 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20346

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
45.6%
EPSS 45.6% chance of exploitation in 30 days, percentile 98%
public exploits
4
Metasploit, Exploit-DB

Summary

A privilege escalation vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to leverage an RCE vulnerability escalating to root.

Patch / fix

  • nagios nagios_xi 5.4.13

Timeline

  1. First public exploit (Metasploit exploit/linux/http/nagios_xi_chained_rce)
  2. Published

Exploit prediction

45.63% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.