CVE-2026-71407

HIGH CVSS 3.1: 8.1 EPSS 0.42%
Updated Sep 08, 2026
Fortinet
Parameter Value
CVSS 8.1 (HIGH)
Affected Versions 7.6.1 — 7.6.7
Fixed In 7.6.7
Type CWE-121 (Stack-based Buffer Overflow)
Vendor Fortinet
Public PoC No

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Fortinet Fortios
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
7.6.1 7.6.7