What’s Vulnerable › Vulnerabilities
CVE-2026-40688
- Severity: high (CVSS 7.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 6.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-14 · updated 2026-07-24
- Weakness: CWE-787
Description
An out-of-bounds write vulnerability [CWE-787] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11 may allow a remote privileged attacker to execute arbitrary code or command via crafted HTTP requests.
Affected products
- Fortinet FortiWeb: from 7.4.0 before 7.4.12; from 7.6.0 before 7.6.7; from 8.0.0 before 8.0.4 — fixed in 7.4.12, 7.6.7, 8.0.4
How to fix
Upgrade to a fixed version: Fortinet FortiWeb 7.4.12, 7.6.7, 8.0.4. Check the vendor advisory for mitigations.
References
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