CVE-2026-84393 PUBLISHED

Assigner: fortinet
Reserved: 01.09.2026 Published: 08.09.2026 Updated: 08.09.2026

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>

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CVSS Score: 7.3

Product Status

Vendor Fortinet
Product FortiOS
Versions Default: unaffected
  • affected from 7.6.1 to 7.6.6 (incl.)
Vendor Fortinet
Product FortiProxy
Versions Default: unaffected
  • affected from 7.6.2 to 7.6.6 (incl.)

Solutions

Upgrade to FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.7 or above Upgrade to upcoming FortiProxy version 8.0.0 or above Upgrade to upcoming FortiProxy version 7.6.7 or above Fortinet remediated this issue in FortiSASE version 26.2.2 (not released) and hence customers do not need to perform any action.

References

Problem Types

  • Information disclosure CWE