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>

SeverityHigh
CVSS8.1
Exploit probability—
ProductFortinet Fortios
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-297CWE-297

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
fortinet fortios7.6.1 ≤ v ≤ 7.6.6—
fortinet fortiproxy7.6.2 ≤ v ≤ 7.6.6—

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CVE-2026-84393 · Fortinet Fortios · Dark Radar