CVE-2026-106174 — HIGH (7.5)

Vulnerability Description

A improper locking vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.4 through 7.6.6 may allow an unauthenticated attacker with network access to the device to cause a denial of service of the HTTPS management interface via crafted HTTP requests.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-667

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-181

FAQ

What is CVE-2026-106174?

CVE-2026-106174 is a vulnerability with a CVSS score of 7.5 (HIGH). A improper locking vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.4 through 7.6.6 may allow an unauthenticated attacker with network access to the device to cause a denial of service of the HTTP...

How severe is CVE-2026-106174?

CVE-2026-106174 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-106174?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.