CVE-2021-42756 CRITICAL

CVE-2021-42756

Vendor Fortinet
Product FortiWeb
Weakness CWE-121
Published February 16, 2023
Last update October 23, 2024

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.

Key dates

02Disclosure timeline

February 16, 2023 CVE published
October 23, 2024 Record updated