CVE-2020-36867 Nagios XI < 5.7.3 Command Injection in Report PDF Download
An authenticated attacker can inject shell commands via the report PDF download feature in Nagios XI, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-36867?
CVE-2020-36867 is a high-severity command injection vulnerability in Nagios Nagios Xi, published on 30 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Nagios XI versions prior to 5.7.3 contain a command injection vulnerability in the report PDF download/export functionality. User-supplied values used in the PDF generation pipeline or the wrapper that invokes offline/pdf helper utilities were insufficiently validated or improperly escaped, allowing an authenticated attacker who can trigger PDF exports to inject shell metacharacters or arguments.
Weakness: CWE-78
Which versions are affected by CVE-2020-36867?
It affects 1 product.
Products include Nagios Nagios Xi.
How do I fix CVE-2020-36867?
No fix has been published for CVE-2020-36867 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2020-36867 being exploited?
There is no known exploitation of CVE-2020-36867 in the wild and no public exploit code.
Other vulnerabilities in Nagios Nagios Xi
Sources
Also known as GHSA-3qxh-pr59-jwh7.