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Fencer Intel
high 8.8

CVE-2018-15711 in the critical feed json

Nagios XI 5.5.6 allows remote authenticated attackers to reset and regenerate the API key of more privileged users.

published 7y ago modified 4mo ago also EUVD-2018-7581

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
36.0%
EPSS 36.0% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Nagios XI 5.5.6 allows remote authenticated attackers to reset and regenerate the API key of more privileged users. The attacker can then use the new API key to execute API calls at elevated privileges.

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Exploit prediction

36.01% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • tenable.com https://www.tenable.com/security/research/tra-2018-37 referenced PoC, tagged "exploit" by a source, unverified

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 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Nagios Nagios XI

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel 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.