Fortinet FortiOS up to 7.2.8/7.4.4 Fabric Service stack-based overflow

Summaryinfo

A vulnerability was found in Fortinet FortiOS up to 7.2.8/7.4.4. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the component Fabric Service. Performing a manipulation results in stack-based overflow. This vulnerability is identified as CVE-2024-35279. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Fortinet FortiOS up to 7.2.8/7.4.4. It has been classified as very critical. This affects an unknown code block of the component Fabric Service. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A stack-based buffer overflow [CWE-121] vulnerability in Fortinet FortiOS version 7.2.4 through 7.2.8 and version 7.4.0 through 7.4.4 allows a remote unauthenticated attacker to execute arbitrary code or commands via crafted UDP packets through the CAPWAP control, provided the attacker were able to evade FortiOS stack protections and provided the fabric service is running on the exposed interface.

It is possible to read the advisory at fortiguard.fortinet.com. This vulnerability is uniquely identified as CVE-2024-35279 since 05/14/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/17/2025).

The vulnerability scanner Nessus provides a plugin with the ID 216116 (Fortinet Fortigate Stack buffer overflow in fabric service (FG-IR-24-160)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (216116). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• Fortinet

Name

• FortiOS

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
• 7.4.0
• 7.4.1
• 7.4.2
• 7.4.3
• 7.4.4

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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