Overview
SonicWall SonicOS contains an improper access control vulnerability that could lead to unauthorized resource access and, under certain conditions, may cause the firewall to crash.
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015; https://www.sonicwall.com/support/notices/gen-7-and-newer-sonicwall-firewalls-sslvpn-recent-threat-activity/kA1VN0000000RDG0A2 ; https://nvd.nist.gov/vuln/detail/CVE-2024-40766
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2024-40766 |
| Vendor / Product | SonicWall — SonicOS |
| NVD Published | 2024-08-23 |
| NVD Last Modified | 2025-10-31 |
| 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-284 |
| CISA KEV Added | 2024-09-09 |
| CISA KEV Deadline | 2024-09-30 |
| 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: 2024-09-30.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2024-09-09 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2024-09-30 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2024-40766 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |