CVE-2021-22123

Name: CVE-2021-22123
Creator: NVD / NIST
Published: 2021-06-01T20:15:08.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 77.27%

Last modified Jun 17, 2026

CVE-2021-22123 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An OS command injection vulnerability in FortiWeb's management interface 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, 5.9.x may allow a remote authenticated attacker to execute arbitrary commands on the system via the SAML server configuration page.. EPSS estimates a 77.27% chance of exploitation in the next 30 days.

Description

An OS command injection vulnerability in FortiWeb's management interface 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, 5.9.x may allow a remote authenticated attacker to execute arbitrary commands on the system via the SAML server configuration page.

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

77.27%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Fortinet	Fortiweb	>= 5.9.0, < 6.2.4
Fortinet	Fortiweb	>= 6.3.0, < 6.3.8

References

https://fortiguard.com/advisory/FG-IR-20-120Vendor Advisory
https://fortiguard.com/advisory/FG-IR-20-120Vendor Advisory

Timeline

Published: Jun 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22123?

How severe is CVE-2021-22123?

CVE-2021-22123 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 77.27% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22123?

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-2021-22123?

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

Scan your code now

Source: NVD / NIST