PSIRTStack buffer overflow in API
Summary
A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiWeb may allow a remote authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests.
| Version | Affected | Solution |
|---|---|---|
| FortiWeb 8.0 | 8.0.0 through 8.0.3 | Upgrade to 8.0.4 or above |
| FortiWeb 7.6 | 7.6.0 through 7.6.6 | Upgrade to 7.6.7 or above |
| FortiWeb 7.4 | 7.4.0 through 7.4.11 | Upgrade to 7.4.12 or above |
| FortiWeb 7.2 | 7.2 all versions | Migrate to a fixed release |
| FortiWeb 7.0 | 7.0 all versions | Migrate to a fixed release |
Acknowledgement
Internally discovered and reported by David Maciejak of Fortinet Product Security team.Timeline
2026-03-10: Initial publication