FortinetCVE-2026-26035
Fortinet FortiWeb: improper authentication
Critical9.8CVE-2026-26035 · Published Aug 12, 2026 · updated Sep 8, 2026
An Improper Authentication vulnerability [CWE-287] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11, FortiWeb 7.2.0 through 7.2.12, FortiWeb 7.0.0 through 7.0.12 may allow a remote unauthenticated attacker to login into the Fortiweb GUI/CLI with a random username and password
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| FortiWeb Product | >= 8.0.0, <= 8.0.2 | No fix yet |
| >= 7.6.0, <= 7.6.6 | No fix yet | |
| >= 7.4.0, <= 7.4.11 | No fix yet | |
| >= 7.2.0, <= 7.2.12 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-287
More Fortinet advisories
All Fortinet| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 12 | Fortinet FortiSIEM: server-side request forgery | Low3.8 | No fix yet |
| Aug 12 | Fortinet FortiManager: authentication bypass | High8.1 | No fix yet |
| Aug 12 | Fortinet FortiOS: stack buffer overflow | Medium5.6 | No fix yet |
| Aug 12 | Fortinet FortiOS: denial of service | Medium5.3 | No fix yet |
| Aug 12 | Fortinet FortiWeb: improper access control | Medium5.3 | No fix yet |
| Aug 12 | Fortinet FortiClientWindows: buffer overflow | High8.1 | No fix yet |