CVE-2021-36186

HIGH

Fortinet FortiWeb <6.4.0 - Buffer Overflow

Title source: llm
STIX 2.1

Description

A stack-based buffer overflow in Fortinet FortiWeb version 6.4.0, version 6.3.15 and below, 6.2.5 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://fortiguard.com/advisory/FG-IR-21-119

Scores

CVSS v3 8.8
EPSS 0.0053
EPSS Percentile 67.7%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/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 (2)
fortinet/fortiweb 6.4.0
fortinet/fortiweb 6.2.0 - 6.2.5
Published Nov 02, 2021
Tracked Since Feb 18, 2026