FortinetCVE-2026-84393
Fortinet FortiOS: information disclosure
High8.1CVE-2026-84393 · Published Sep 8, 2026 · updated Sep 10, 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>
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| FortiOS Product | >= 7.6.1, <= 7.6.6 | No fix yet |
| FortiProxy Product | >= 7.6.2, <= 7.6.6 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-297
More Fortinet advisories
All Fortinet| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 8 | Fortinet FortiSOAR PaaS: improper access control | Medium5.4 | No fix yet |
| Sep 8 | Fortinet FortiClientWindows: improper access control | Medium5.1 | No fix yet |
| Sep 8 | Fortinet FortiSandbox: command injection | High7.2 | No fix yet |
| Sep 8 | Fortinet FortiSIEM: open redirect | Low3.1 | No fix yet |
| Sep 8 | Fortinet FortiAnalyzer: denial of service | Medium6.5 | No fix yet |
| Sep 8 | Fortinet FortiOS: null pointer dereference | Low2.7 | No fix yet |