CVE-2020-36867

Name: CVE-2020-36867
Creator: NVD / NIST
Published: 2025-10-30T22:15:39.7+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 2.42%

Last modified Jun 17, 2026

CVE-2020-36867 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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.. EPSS estimates a 2.42% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

2.42%

82.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Nagios	Nagios Xi	< 5.7.3

References

https://www.nagios.com/changelog/nagios-xi/Release Notes
https://www.vulncheck.com/advisories/nagios-xi-command-injection-in-report-pdf-downloadThird Party Advisory

Timeline

Published: Oct 30, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-36867?

How severe is CVE-2020-36867?

CVE-2020-36867 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 2.42% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36867?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36867?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST