Stack-based Buffer Overflow in Fortinet FortiWeb Web Application Firewall

CVE-2026-30897

What is CVE-2026-30897?

A stack-based buffer overflow vulnerability in Fortinet's FortiWeb can be exploited by a remote authenticated attacker capable of bypassing stack protection and Address Space Layout Randomization (ASLR). By sending specially crafted HTTP requests, an attacker may execute arbitrary code or commands, potentially leading to unauthorized access or control over affected systems. This vulnerability affects multiple versions across the FortiWeb product line, necessitating immediate attention from users to mitigate risks.

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