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CVE-2023-36553

FortiSIEM - API

Fortinet CVSS 9.8 Updated March 18, 2026

Executive Risk Summary

"A vulnerability in Fortinet FortiSIEM versions 5.4.0, 5.3.0-5.3.3, 5.2.5-5.2.8, 5.2.1-5.2.2, 5.1.0-5.1.3, 5.0.0-5.0.1, 4.10.0, 4.9.0, and 4.7.2 allows attackers to execute unauthorized code or commands via crafted API requests, potentially leading to code injection and system compromise. This vulnerability, tracked as CVE-2023-36553, poses a significant risk to the security and integrity of affected systems."

Operational Audit Arsenal

Target Type API
Target Asset FortiSIEM API
Standard Path Global Firmware

Manual Verification Required

This is a non-Windows asset (Fortinet). Use the target asset details above to verify your version against vendor advisories.

Patch Impact Forecast

Reboot Required Likely

Moderate to High

Internal Work Notes

CVE-2023-36553: FortiSIEM API vulnerability allowing os command injection, requiring immediate patching to prevent potential code execution and system compromise.

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Scope of Impact

Fortinet Fortisiem (Version 4.10.0)Fortinet Fortisiem (Version 5.2.8)Fortinet Fortisiem (Version 5.3.0)Fortinet Fortisiem (Version 5.2.2)Fortinet Fortisiem (Version 5.3.2)Fortinet Fortisiem (Version 5.0.1)Fortinet Fortisiem (Version 4.7.2)Fortinet Fortisiem (Version 5.0.0)Fortinet Fortisiem (Version 4.9.0)Fortinet Fortisiem (Version 5.2.5)Fortinet Fortisiem (Version 5.2.6)Fortinet Fortisiem (Version 5.4.0)Fortinet Fortisiem (Version 5.2.7)Fortinet Fortisiem (Version 5.3.1)Fortinet Fortisiem (Version 5.3.3)Fortinet Fortisiem (Version 5.2.1)Fortinet Fortisiem

Original NVD Description

"A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiSIEM version 5.4.0 and 5.3.0 through 5.3.3 and 5.2.5 through 5.2.8 and 5.2.1 through 5.2.2 and 5.1.0 through 5.1.3 and 5.0.0 through 5.0.1 and 4.10.0 and 4.9.0 and 4.7.2 allows attacker to execute unauthorized code or commands via crafted API requests."

Related Fortinet Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.