CISA-confirmed known exploited vulnerability

CVE-2024-40766

SonicWall SonicOS Improper Access Control Vulnerability

SonicWall · SonicOS

Vulnerability details

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.

Added to CISA KEV: 2024-09-09

Ransomware campaign use: Known

CISA due date: 2024-09-30

Defensive guidance from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

View CISA KEV catalog View NVD record

← All vulnerabilities