CVE-2024-40766
CRITICAL CISA KEVCVSS v3
9.8
CRITICAL
EPSS Score
—
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
CISA Known Exploited Vulnerability
- Date Added
- 9/9/2024
- Patch Due Date
- 9/30/2024
- Ransomware Use
- Known
- Required Action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 8/23/2024
- Last Modified
- 10/31/2025
- CERT-FR Advisory
- CERTFR-2024-ALE-011
- CERT-FR Link
- CERTFR-2024-ALE-011
Frequently Asked Questions
What is CVE-2024-40766?
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.
Is CVE-2024-40766 actively exploited?
Yes. CVE-2024-40766 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 9/30/2024.
What is the CVSS score for CVE-2024-40766?
CVE-2024-40766 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.
Is CVE-2024-40766 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.