What is CVE-2021-47700?

CVE-2021-47700 is a high-severity vulnerability in Nagios Nagios_xi, classified under CWE-250. CVSS score: 7.8/10. Published 2025-10-30.

How severe is CVE-2021-47700?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Nagios Nagios_xi

CVE-2021-47700

Nagios XI versions prior to 5.8.7 used a temporary directory for Highcharts exports with overly permissive ownership/permissions under the Apache user. Local or co-hosted processes could read/overwrite export artifacts or manipulate paths…

EPSS: 0.003 (23.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nagios Nagios_xi
Nagios Xi — versions 0

Weakness classification (CWE)

CWE-250

References

disclosure@vulncheck.com (release-notes, Release Notes, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2021-47700?: CVE-2021-47700 is a high-severity vulnerability in Nagios Nagios_xi, classified under CWE-250. CVSS score: 7.8/10. Published 2025-10-30.
How severe is CVE-2021-47700?: High severity. CVSS v3 base score is 7.8 out of 10.