CVE-2026-71407CWE-121

CVE-2026-71407

Medium · published August 12, 2026

CVSS v3.1
5.6
EPSS
1%
Percentile
42.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00514 · 42.9th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-08-12T17:17Z
Affected products (1)
ProductVersionsFixed in
fortinet/fortios≥ 7.6.1, < 7.6.77.6.7
References (2)
https://fortiguard.fortinet.com/psirt/FG-IR-26-161 · [email protected]https://cert-portal.siemens.com/productcert/html/ssa-127084.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 12 AUG 12:19Z
    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…
    cvelistv5