SonicWall SonicOS Improper Access Control Vulnerability (CVE-2024-40766)

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. CISA has confirmed use of this vulnerability in known ransomware campaigns — treat as high priority for remediation. Federal agencies are required to remediate by 2024-09-30 under CISA BOD 22-01.

This is a Software Vulnerability (CWE-284) (CWE-284) vulnerability in SonicWall SonicOS. 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. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

Probably yes if any of these apply:

CISA confirms this CVE has been used in known ransomware campaigns. Added to the KEV catalog on 2024-09-09; federal agencies required to remediate by 2024-09-30.