CVE-2026-106174 | BDVDB-2026-396334 Detail

FortinetFortiOS

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-667 Denial of service

References#

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

Exploit#

No public exploit known

History#

Version 12026-10-27Record published in the CVE List.

Published

Published: 2026-10-27
Last modified: 2026-10-27

Vendor information

Vendor: Fortinet
Product: FortiOS

All Fortinet vulnerabilities

Score

6.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 20.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
8.0.0
Fixed
Not stated
Vulnerable
>= 7.6.4 and <= 7.6.6
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

6.7 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).