CVE-2021-36194

HIGH

FortiWeb 6.3.0-6.3.15, 6.4.0-6.4.1 - Authenticated Remote Code Execution via API Controller Buffer Overflow

Title source: llm

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.

References (1)

Core 1

Core References

Patch, Vendor Advisory x_refsource_confirm

https://fortiguard.com/advisory/FG-IR-21-152

Scores

CVSS v3 8.8

EPSS 0.0076

EPSS Percentile 73.5%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-787

Status published

Products (3)

fortinet/fortiweb 6.4.0

fortinet/fortiweb 6.4.1

fortinet/fortiweb 6.3.0 - 6.3.15

Published Dec 09, 2021

Tracked Since Feb 18, 2026