CVE-2022-38381

Name: CVE-2022-38381
Creator: NVD / NIST
Published: 2022-11-02T12:15:54.773+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2022-38381 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An improper handling of malformed request vulnerability [CWE-228] exists in FortiADC 5.0 all versions, 6.0.0 all versions, 6.1.0 all versions, 6.2.0 through 6.2.3, and 7.0.0 through 7.0.2. This may allow a remote attacker without privileges to bypass some Web Application Firewall (WAF) protection such as the SQL Injection and XSS filters via a malformed HTTP request.. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

An improper handling of malformed request vulnerability [CWE-228] exists in FortiADC 5.0 all versions, 6.0.0 all versions, 6.1.0 all versions, 6.2.0 through 6.2.3, and 7.0.0 through 7.0.2. This may allow a remote attacker without privileges to bypass some Web Application Firewall (WAF) protection such as the SQL Injection and XSS filters via a malformed HTTP request.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.68%

47.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Fortinet	Fortiadc	>= 5.0.0, <= 5.0.4
Fortinet	Fortiadc	>= 5.1.0, <= 5.1.7
Fortinet	Fortiadc	>= 5.2.0, <= 5.2.8
Fortinet	Fortiadc	>= 5.3.0, <= 5.3.7
Fortinet	Fortiadc	>= 5.4.0, <= 5.4.5
Fortinet	Fortiadc	>= 6.0.0, <= 6.0.4
Fortinet	Fortiadc	>= 6.1.0, <= 6.1.6
Fortinet	Fortiadc	>= 6.2.0, <= 6.2.3
Fortinet	Fortiadc	>= 7.0.0, <= 7.0.2

References

https://fortiguard.com/psirt/FG-IR-22-234Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-234Vendor Advisory

Timeline

Published: Nov 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-38381?

How severe is CVE-2022-38381?

CVE-2022-38381 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2022-38381?

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-2022-38381?

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

Scan your code now

Source: NVD / NIST