CISA KEV · Known exploitedCritical

CVE-2024-40766

SonicWall SonicOS

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.

CVSS
9.8
EPSS
18.2%
96.9% percentile
CISA KEV
Listed
Published
2024.08.23
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability18.2%
Technical severityCVSS 9.8

Vulnerability overview

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.

Affected product and versions

Product
SonicWall SonicOS
Affected versions
5.9.2.14-12o and older versions, 6.5.4.14-109n and older versions, 7.0.1-5035 and older versions, < 5.9.2.14-13o, < 6.5.2.8-2n, < 6.5.4.15.116n, <= 7.0.1-5035
Fixed versions
5.9.2.14-13o, 6.5.2.8-2n, 6.5.4.15.116n

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Due date: 2024.09.30
  1. 1
    Identify

    Confirm that SonicWall SonicOS and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-284
KEV added
2024.09.09
Ransomware use
확인됨
CVE-2024-40766 — SonicWall SonicOS | SECUFOCUS NOW