Fortinet FortiOS 7.6.4/7.6.5/7.6.6/8.0.0 HTTPS Management Interface race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k4.04+

Summaryinfo

A vulnerability was found in Fortinet FortiOS 7.6.4/7.6.5/7.6.6/8.0.0. It has been rated as critical. The impacted element is an unknown function of the component HTTPS Management Interface. The manipulation leads to race condition. This vulnerability is traded as CVE-2026-106174. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Fortinet FortiOS 7.6.4/7.6.5/7.6.6/8.0.0. It has been rated as critical. This issue affects an unknown function of the component HTTPS Management Interface. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is availability. The summary by CVE is:

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.

The advisory is shared at fortiguard.fortinet.com. The identification of this vulnerability is CVE-2026-106174 since 10/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (fortinet): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/06/2026 CVE reserved
10/27/2026 +21 days Advisory disclosed
10/27/2026 +0 days VulDB entry created
10/27/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: fortinet.com

Advisory: fortiguard.fortinet.com
Status: Confirmed

CVE: CVE-2026-106174 (🔒)
GCVE (CVE): GCVE-0-2026-106174
GCVE (VulDB): GCVE-100-427049

Entryinfo

Created: 10/27/2026 08:15
Changes: 10/27/2026 08:15 (63)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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