ACTIVELY EXPLOITED
CVE-2024-40766: SonicWall SonicOS Improper Access Control Vulnerability
| Vendor | SonicWall |
|---|---|
| Product | SonicOS |
| Actively exploited | Yes |
| Added to CISA KEV | 9 Sep 2024 |
| CISA federal deadline | 30 Sep 2024 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-284 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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.
SOURCES
Other SonicWall flaws
- CVE-2026-19868: SonicWall SonicOS SSLVPN Use of Single-factor Authentication Vulnerability
- CVE-2026-83549: SonicWall SMA1000 Appliances OS Command Injection Vulnerability
- CVE-2026-83548: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
- CVE-2026-15410: SonicWall SMA1000 Appliances Code Injection Vulnerability
- CVE-2026-15409: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.