CVE-2024-40766
Published: September 9, 2024
Official Description
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.
CISA KEV Advisory
SonicWall SonicOS Improper Access Control Vulnerability
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.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
SonicWall SonicOS contains an improper access control vulnerability that could lead to unauthorized resource access and potentially cause the firewall to crash. This is a high-severity issue with confirmed in-the-wild exploitation, requiring prompt action.
This vulnerability is actively being exploited in the wild. The nature of the flaw suggests it could be exploited remotely to gain unauthorized access or disrupt services.
Apply the latest security updates and patches provided by SonicWall for SonicOS to address the improper access control vulnerability.
Technical Analysis
CVE-2024-40766 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2024-40766 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
News & Research Mentioning CVE-2024-40766
The vulnerability [xlite_meta score:54 src:SANS ISC xlite_fp:49f68fd0b2b7f0b61ba06e185b4b6b291263601043f937981a47eccb8d4d71e5]
All References (3)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-40766 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1