Fortinet FortiAnalyzer up to 7.2.12/7.4.11/7.6.7/8.0.1 HTTP format string

Summaryinfo

A vulnerability was found in Fortinet FortiAnalyzer, FortiAnalyzer Cloud, FortiManager and FortiManager Cloud up to 7.2.12/7.4.11/7.6.7/8.0.1. It has been classified as very critical. This impacts an unknown function of the component HTTP Handler. The manipulation leads to format string. This vulnerability is traded as CVE-2026-126171. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Fortinet FortiAnalyzer, FortiAnalyzer Cloud, FortiManager and FortiManager Cloud up to 7.2.12/7.4.11/7.6.7/8.0.1. It has been rated as very critical. This issue affects an unknown code block of the component HTTP Handler. The manipulation with an unknown input leads to a format string vulnerability. Using CWE to declare the problem leads to CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A use of externally-controlled format string vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.1, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer 7.2.0 through 7.2.12, FortiAnalyzer Cloud 8.0.1, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiAnalyzer Cloud 7.2.1 through 7.2.12, FortiManager 8.0.0 through 8.0.1, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager 7.2.0 through 7.2.12, FortiManager Cloud 8.0.1, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11, FortiManager Cloud 7.2.1 through 7.2.12 may allow an authenticated attacker to execute unauthorized commands via specially crafted HTTP request

The advisory is shared at fortiguard.fortinet.com. The identification of this vulnerability is CVE-2026-126171 since 11/10/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/11/2026).

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

Type

• Cloud Software

Vendor

• Fortinet

Name

• FortiAnalyzer
• FortiAnalyzer Cloud
• FortiManager
• FortiManager Cloud

Version

• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.5
• 7.2.6
• 7.2.7
• 7.2.8
• 7.2.9
• 7.2.10
• 7.2.11
• 7.2.12
• 7.4.0
• 7.4.1
• 7.4.2
• 7.4.3
• 7.4.4
• 7.4.5
• 7.4.6
• 7.4.7
• 7.4.8
• 7.4.9
• 7.4.10
• 7.4.11
• 7.6.0
• 7.6.1
• 7.6.2
• 7.6.3
• 7.6.4
• 7.6.5
• 7.6.6
• 7.6.7
• 8.0.0
• 8.0.1

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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Entryinfo

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

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