Fortinet FortiAnalyzer/FortiManager 7.4.11/7.6.7/8.0.0 GUI neutralization

Summaryinfo

A vulnerability was found in Fortinet FortiAnalyzer and FortiManager 7.4.11/7.6.7/8.0.0. It has been rated as very critical. This vulnerability affects unknown code of the component GUI. Performing a manipulation results in neutralization. This vulnerability is known as CVE-2026-126221. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Fortinet FortiAnalyzer and FortiManager 7.4.11/7.6.7/8.0.0. It has been classified as very critical. This affects an unknown function of the component GUI. The manipulation with an unknown input leads to a neutralization vulnerability. CWE is classifying the issue as CWE-707. The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being used when received from an upstream component, or before being sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A improper neutralization of special elements in output used by a downstream component ('injection') vulnerability in Fortinet FortiAnalyzer 8.0.0, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer Cloud 8.0.0, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiManager 8.0.0, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager Cloud 8.0.0, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11 may allow an authenticated administrator to read or write arbitrary files or execute unauthorized code or commands via specially crafted requests to the GUI.

The advisory is shared at fortiguard.fortinet.com. This vulnerability is uniquely identified as CVE-2026-126221 since 11/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. 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

Vendor

• Fortinet

Name

• FortiAnalyzer
• FortiManager

Version

• 7.4.11
• 7.6.7
• 8.0.0

License

• commercial

Website

• Vendor: https://www.fortinet.com/

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Entryinfo

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

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