# CVE-2024-40766: SonicWall SonicOS Improper Access Control Vulnerability

> CVE-2024-40766: SonicWall SonicOS Improper Access Control Vulnerability. CVSS 9.3 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-40766
Last updated: 2026-09-21T20:25:59Z

- Published: 2024-08-23 06:19 UTC · Updated: 2026-09-21 20:25 UTC · Assigner: sonicwall
- CVSS: 9.3 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
- EPSS: 18.4%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-09-09, federal due date 2024-09-30, ransomware use: Known
- CWE: CWE-284

## 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 required action

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

## Affected vendors and products

- SonicWall: SonicOS

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-40766)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-40766)
- [https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-40766 · Markdown: https://rewindex.com/cve/CVE-2024-40766.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-40766 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:21.362Z