CVE•Published 2021-02-15•Modified 2026-07-09•1 article on news•6 live references•NVD data
CVE-2021-25296Nagios · Nagios_xi
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
99
Exploit Prediction Scoring System · top 1% of all CVEs
Description
Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/windowswmi/windowswmi.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.
Timeline
Published 2021-02-15
Modified 2026-07-09
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2021-25296Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Nagios Nagios Xi"All exposed Nagios Nagios Xi instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Nagios Xi"HTTP body or banner mentions "Nagios Xi" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-25296Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-25296Censys host search filtered to this CVE id.
grep.app
CVE-2021-25296Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-25296GitHub code search for direct mentions.
Google dork
"CVE-2021-25296" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.