September 9, 2024 · Applied Cybernetics Group
CVE-2024-40766 — SonicWall SonicOS
known ransomware use
SonicWall SonicOS Improper Access Control Vulnerability
- Added to KEV
2024-09-09- Federal due date
2024-09-30- Vendor
- SonicWall
- Product
- SonicOS
- EPSS
- 97.2th percentile (score 0.184, as of
2026-10-04) - NVD CVSS v3.1
- 9.8 (CRITICAL)
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2024-40766
CISA short description
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.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
NVD description
An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially leading to unauthorized resource access and in specific conditions, causing the firewall to crash. This issue affects SonicWall Firewall Gen 5 and Gen 6 devices, as well as Gen 7 devices running SonicOS 7.0.1-5035 and older versions.