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
- 87.7th percentile (score 0.034, as of
2026-06-08) - NVD CVSS v3.1
- —
- 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.