Overview
Fortinet FortiOS, FortiProxy, and FortiSwitchManager contain an authentication bypass vulnerability that could allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests.
https://www.fortiguard.com/psirt/FG-IR-22-377; https://nvd.nist.gov/vuln/detail/CVE-2022-40684
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2022-40684 |
| Vendor / Product | Fortinet — Multiple Products |
| NVD Published | 2022-10-18 |
| NVD Last Modified | 2026-01-14 |
| CVSS 3.1 Score | 9.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-287 |
| CISA KEV Added | 2022-10-11 |
| CISA KEV Deadline | 2022-11-01 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2022-11-01.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2022-10-11 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2022-11-01 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2022-40684 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |