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CVE-2024-40766

critical

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.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015

https://securelist.com/malware-report-q3-2024-non-mobile-statistics/114695/

https://thehackernews.com/2024/11/new-ymir-ransomware-exploits-memory-for.html

https://securityaffairs.com/170359/cyber-crime/fog-akira-ransomware-sonicwall-vpn-flaw.html

https://www.bleepingcomputer.com/news/security/fog-ransomware-targets-sonicwall-vpns-to-breach-corporate-networks/

https://arcticwolf.com/resources/blog/arctic-wolf-labs-observes-increased-fog-and-akira-ransomware-activity-linked-to-sonicwall-ssl-vpn/

https://thehackernews.com/2024/10/ransomware-gangs-use-lockbits-fame-to.html

https://blog.talosintelligence.com/akira-ransomware-continues-to-evolve/

https://www.bleepingcomputer.com/news/security/sonicwall-sslvpn-access-control-flaw-is-now-exploited-in-attacks/

https://arcticwolf.com/resources/blog/arctic-wolf-observes-akira-ransomware-campaign-targeting-sonicwall-sslvpn-accounts/

https://securityonline.info/sonicwall-issues-urgent-patch-for-critical-firewall-vulnerability-cve-2024-40766/?&web_view=true

https://www.tenable.com/blog/verizon-2025-dbir-tenable-research-collaboration

Details

Source: Mitre, NVD

Published: 2024-08-23

Updated: 2024-09-16

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.15779

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored