What is CVE-2016-6209?

CVE-2016-6209 is a medium-severity vulnerability in Nagios, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-03-31.

How severe is CVE-2016-6209?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Nagios

CVE-2016-6209

Cross-site scripting (XSS) vulnerability in Nagios.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-03-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.018 (77.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Nagios

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

bugzilla.redhat.com/show_bug.cgi (VDB Entry, Third Party Advisory, Issue Tracking)
seclists.org/fulldisclosure/2016/Jun/20 (mailing-list, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2016-6209?: CVE-2016-6209 is a medium-severity vulnerability in Nagios, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-03-31.
How severe is CVE-2016-6209?: Medium severity. CVSS v3 base score is 6.1 out of 10.