CVE-2021-26109 HIGH

CVE-2021-26109

Vendor Fortinet
Product Fortinet FortiOS
Published December 8, 2021
Last update October 25, 2024

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.

Key dates

02Disclosure timeline

December 8, 2021 CVE published
October 25, 2024 Record updated