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[ CVE-2024-40766 · Published 23 Aug 2024 ]

SonicWall SonicOS Improper Access Control Vulnerability

Exploited · CISA KEV CVSS 9.8 EPSS 18%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2024-09-09
  • Known to be used in ransomware campaigns
  • EPSS: 18% chance of exploitation in the next 30 days (higher than 97% of CVEs)
  • Critical severity: CVSS 9.8

[ Description ]Official 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: 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.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 30 Sep 2024): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References