Stack-based Buffer Overflow in Fortinet FortiWeb Web Application Firewall
CVE-2026-30897

5.9MEDIUM

Key Information:

Vendor

Fortinet
Status
Fortiweb
Vendor
CVE Published:
10 March 2026

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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Affected Version(s)

FortiWeb 8.0.0 <= 8.0.3

FortiWeb 7.6.0 <= 7.6.6

FortiWeb 7.4.0 <= 7.4.11

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-093

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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