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CVE-2024-40766

CRITICALCVSS 9.8/10Actively ExploitedEPSS 15.69%

Last modified

CVE-2024-40766 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 has confirmed active exploitation in the wild. EPSS estimates a 15.69% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
15.69%

96.4th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersions
SonicwallSonicos< 5.9.2.14-13o
SonicwallSonicos< 6.5.2.8-2n
SonicwallSonicos< 6.5.4.15.116n
SonicwallSonicos<= 7.0.1-5035

References

Timeline

Published
Last Modified
Status
Analyzed

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.
How severe is CVE-2024-40766?
CVE-2024-40766 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 15.69% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2024-40766?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-40766?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST