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Fencer Intel
medium 6.1

CVE-2016-6209 json

Cross-site scripting (XSS) vulnerability in Nagios.

published 2017-03-31 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7142

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in Nagios.

Patch / fix

  • nagios openSUSE Tumbleweed 4.4.6-2.5
  • nagios Package Hub 15 SP2 4.4.6-bp152.2.3.1
  • nagios openSUSE Leap 15.2 4.4.6-lp152.2.3.1

opensuse advisories openSUSE-SU-2024:11073-1openSUSE-SU-2021:0735-1openSUSE-SU-2021:0715-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-6209 updated cvss 4.3

nagios: Reflected XSS vulnerability and possible phishing vector

  • Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) nagios Red Hat Enterprise Linux OpenStack Platform 6 (Juno) nagios Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) nagios, nagios-common Red Hat Mobile Application Platform 4 nagios Red Hat Storage 3 nagios, nagios-common
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.79% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.