CVE-2020-36857 Nagios XI < 5.6.14 Authenticated SQL Injection via SNMP Trap Interface Page
An authenticated administrator can exploit SQL injection in the SNMP Trap Interface to read or modify application data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-36857?
CVE-2020-36857 is a high-severity SQL injection vulnerability in Nagios Nagios Xi, published on 30 Oct 2025. An attacker needs administrator access to exploit it, with no action from the victim.
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.
Weakness: CWE-89
Which versions are affected by CVE-2020-36857?
It affects 1 product.
Products include Nagios Nagios Xi.
How do I fix CVE-2020-36857?
No fix has been published for CVE-2020-36857 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2020-36857 being exploited?
There is no known exploitation of CVE-2020-36857 in the wild and no public exploit code.
Other vulnerabilities in Nagios Nagios Xi
Sources
Also known as GHSA-vf39-pr8x-483v.