CVE-2026-39811
Medium
Description
A integer overflow or wraparound vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow attacker to denial of service via <insert attack vector here>
SeverityMedium
CVSS4.9
Exploit probability—
Product
Fortinet Fortiweb
PublishedApr 14, 2026
First seenApr 14, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- fortinet fortiweb7.6.7, 8.0.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fortinet fortiweb | 7.0.0 ≤ v ≤ 7.0.13, 7.2.0 ≤ v ≤ 7.2.13, 7.4.0 ≤ v ≤ 7.4.12, 7.6.0 ≤ v < 7.6.7, 8.0.0 ≤ v < 8.0.4 | 7.6.7, 8.0.4 |
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