CVE-2026-84393CWE-297

CVE-2026-84393

High · published September 8, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
19.1
In the wild
Unconfirmed
What it is

A improper validation of certificate with host mismatch vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6, FortiProxy 7.6.2 through 7.6.6 may allow attacker to information disclosure via <insert attack vector here>

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00278 · 19.1th percentile
Weakness
CWE-297 · Improper Validation of Certificate with Host Mismatch
Published
2026-09-08T21:18Z
References (2)
https://fortiguard.fortinet.com/psirt/FG-IR-26-174 · [email protected]https://cert-portal.siemens.com/productcert/html/ssa-127084.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 0%
    epss
  • 08 SEP 16:41Z
    A improper validation of certificate with host mismatch vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6, FortiProxy 7.6.2 through 7.6.6 may allow…
    cvelistv5