FortiWeb
CVE-2026-24640: Stack-based Buffer Overflow in FortiWeb
A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0.2 through 7.0.12 may allow a remote authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiWeb 8.0.0 to 8.0.2 | 8.0.3 or later |
| FortiWeb 7.6.0 to 7.6.6 | 7.6.7 or later |
| FortiWeb 7.4.0 to 7.4.12 | Upgrade past 7.4.12; see the advisory |
| FortiWeb 7.2.0 to 7.2.12 | Upgrade past 7.2.12; see the advisory |
| FortiWeb 7.0.2 to 7.0.12 | Upgrade past 7.0.12; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0.2 through 7.0.12 may allow a remote authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.