CVE-2021-36182

Name: CVE-2021-36182
Creator: NVD / NIST
Published: 2021-09-08T11:15:07.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.92%

Last modified Jun 17, 2026

CVE-2021-36182 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A Improper neutralization of special elements used in a command ('Command Injection') in Fortinet FortiWeb version 6.3.13 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests. EPSS estimates a 1.92% chance of exploitation in the next 30 days.

Description

A Improper neutralization of special elements used in a command ('Command Injection') in Fortinet FortiWeb version 6.3.13 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests

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

1.92%

77.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Fortinet	Fortiweb	<= 6.2.4
Fortinet	Fortiweb	>= 6.3.0, < 6.3.14

References

https://fortiguard.com/advisory/FG-IR-21-047Vendor Advisory
https://fortiguard.com/advisory/FG-IR-21-047Vendor Advisory

Timeline

Published: Sep 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36182?

How severe is CVE-2021-36182?

CVE-2021-36182 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36182?

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-2021-36182?

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

Scan your code now

Source: NVD / NIST