CVE-2026-26035 — CRITICAL (9.8)

Q: How severe is CVE-2026-26035?

CVE-2026-26035 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-26035?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortiweb.

Vulnerability Description

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

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Fortinet	Fortiweb	>= 7.2.0, < 7.2.13

Related Weaknesses (CWE)

CWE-287

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-158Vendor AdvisoryMitigation

FAQ

What is CVE-2026-26035?

CVE-2026-26035 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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, F...

How severe is CVE-2026-26035?

CVE-2026-26035 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-26035?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortiweb.