Known exploited vulnerability
CVE-2024-40766
The short answer
CVE-2024-40766 affects SonicWall SonicOS and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-09-09: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-284.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Sep 9, 2024
Federal due date Sep 30, 2024
EPSS, next 30 days
18%
Higher than 97% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected products
SonicOS. NVD's record lists the exact affected versions.
References
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015 Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40766 US Government Resource
Questions
Is CVE-2024-40766 being exploited?
Yes. CISA added CVE-2024-40766 to its Known Exploited Vulnerabilities catalog on 2024-09-09, with a federal remediation due date of 2024-09-30. CISA lists it as used in ransomware campaigns.
How do I fix CVE-2024-40766?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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