CVE-2021-21406

Name: CVE-2021-21406
Creator: NVD / NIST
Published: 2021-07-21T15:15:13.95+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2021-21406 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Combodo iTop is an open source, web based IT Service Management tool. In versions prior to 2.7.4, there is a command injection vulnerability in the Setup Wizard when providing Graphviz executable path. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

Combodo iTop is an open source, web based IT Service Management tool. In versions prior to 2.7.4, there is a command injection vulnerability in the Setup Wizard when providing Graphviz executable path. The vulnerability is patched in version 2.7.4 and 3.0.0.

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

EPSS Probability

1.03%

59.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Combodo	Itop	< 2.7.4
Combodo	Itop	2.7.5
Combodo	Itop	2.7.5-1

References

https://github.com/Combodo/iTop/security/advisories/GHSA-pf95-6h7q-q85xThird Party Advisory
https://github.com/Combodo/iTop/security/advisories/GHSA-pf95-6h7q-q85xThird Party Advisory

Timeline

Published: Jul 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21406?

How severe is CVE-2021-21406?

CVE-2021-21406 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21406?

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-2021-21406?

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

Scan your code now

Source: NVD / NIST