CVE-2021-36194

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Multiple stack-based buffer overflows in the API controllers of FortiWeb 6.4.1, 6.4.0, and 6.3.0 through 6.3.15 may allow an authenticated attacker to achieve arbitrary code execution via specially crafted requests.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
Fortinet	Fortinet FortiWeb	FortiWeb 6.4.1, 6.4.0, and 6.3.0 through 6.3.15

References

https://fortiguard.com/advisory/FG-IR-21-152Patch, Vendor Advisory
https://fortiguard.com/advisory/FG-IR-21-152Patch, Vendor Advisory

Timeline

Published: Dec 9, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-361958.8Multiple command injection vulnerabilities in the command line interpreter of FortiWeb versions 6.4.1, 6.4.0, 6.3.0 through 6.3.15, 6.2.0 th CVE-2021-361987.5Successful exploitation of this vulnerability could allow an unauthorized user to access sensitive data.CVE-2021-361995.3Running a vulnerability scanner against VideoEdge NVRs can cause some functionality to stop.CVE-2021-36205.5A flaw was found in Ansible Engine's ansible-connection module, where sensitive information such as the Ansible user credentials is disclose CVE-2021-362005.3Under certain circumstances an unauthenticated user could access the the web API for Metasys ADS/ADX/OAS 10 versions prior to 10.1.6 and 11 CVE-2021-362015.3Under certain circumstances a CCURE Portal user could enumerate user accounts in CCURE 9000 version 2.90 and prior versions.CVE-2021-362028.8Server-Side Request Forgery (SSRF) vulnerability in Johnson Controls Metasys could allow an authenticated attacker to inject malicious code CVE-2021-362039.1The affected product may allow an attacker to identify and forge requests to internal systems by way of a specially crafted request.CVE-2021-362047.5Under some circumstances an Insufficiently Protected Credentials vulnerability in Johnson Controls Metasys ADS/ADX/OAS 10 versions prior to CVE-2021-362059.8Under certain circumstances the session token is not cleared on logout.CVE-2021-362066.1All versions of CEVAS prior to 1.01.46 do not sufficiently validate user-controllable input and could allow a user to bypass authentication CVE-2021-362078.8Under certain circumstances improper privilege management in Metasys ADS/ADX/OAS servers versions 10 and 11 could allow an authenticated use