CVE-2026-84393

high

Description

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>

References

https://www.securityweek.com/fortinet-patches-critical-vulnerabilities-in-fortimonitoronsight-chrome-extension/

https://fortiguard.fortinet.com/psirt/FG-IR-26-174

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-72927

https://cert-portal.siemens.com/productcert/html/ssa-127084.html

Details

Source: Mitre, NVD

Published: 2026-09-08

Updated: 2026-10-15

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H