Vulnerability · Published Oct 30, 2025 · Assigned by VulnCheck

CVE-2020-36857Nagios XI < 5.6.14 Authenticated SQL Injection via SNMP Trap Interface Page

High 8.6

In plain English

A high-severity SQL injection in XI from Nagios. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)2.3%top 16.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nagios XI versions prior to 5.6.14 contain a post-authentication SQL injection vulnerability in the SNMP Trap Interface page. Exploitation requires an account with administrative privileges to access the affected interface. A user with administrative access could supply crafted input that is not properly sanitized, allowing SQL injection that may lead to unauthorized disclosure or modification of application data or execution of arbitrary SQL commands against the backend database.

Affected products (as reported)

Vendor	Product	Versions
Nagios	XI	0 – before 5.6.14

Weakness: CWE-89 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

References

https://www.nagios.com/products/security/#nagios-xi vendor-advisory, patch
https://www.nagios.com/changelog/nagios-xi/ release-notes, patch
https://www.vulncheck.com/advisories/nagios-xi-authenticated-sqli-via-snmp-trap-interface-page third-party-advisory