CVE-2022-27491
Last modified
CVE-2022-27491 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of "blocked page" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.. EPSS estimates a 1.22% chance of exploitation in the next 30 days.
Description
A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of "blocked page" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortios | >= 6.0.0, <= 6.0.14 |
| Fortinet | Fortios | >= 6.2.0, < 6.2.11 |
| Fortinet | Fortios | >= 6.4.0, < 6.4.9 |
| Fortinet | Fortios | >= 7.0.0, < 7.0.6 |
| Fortinet | Fortios | 7.2.0 |
References
- https://fortiguard.com/psirt/FG-IR-22-073Vendor Advisory
- https://fortiguard.com/psirt/FG-IR-22-073Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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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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