CVE-2026-39811
Last modified
CVE-2026-39811 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. 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>. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
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>
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortiweb | >= 7.0.0, <= 7.0.13 |
| Fortinet | Fortiweb | >= 7.2.0, <= 7.2.13 |
| Fortinet | Fortiweb | >= 7.4.0, <= 7.4.12 |
| Fortinet | Fortiweb | >= 7.6.0, < 7.6.7 |
| Fortinet | Fortiweb | >= 8.0.0, < 8.0.4 |
References
- https://fortiguard.fortinet.com/psirt/FG-IR-26-108Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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