SonicosOperating system · Sonicwall

CVE-2024-22394

CRITICAL · 9.8 CVSS v3.1 Published 2024-02-08
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An improper authentication vulnerability has been identified in SonicWall SonicOS SSL-VPN feature, which in specific conditions could allow a remote attacker to bypass authentication.  This issue affects only firmware version SonicOS 7.1.1-7040.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

An improper authentication vulnerability in the SonicWall SonicOS SSL-VPN feature (firmware version 7.1.1-7040) allows remote attackers to bypass authentication under specific conditions, potentially granting unauthorized access to the VPN and internal network resources.

MitigationApply a patched firmware version from SonicWall (upgrade to a newer SonicOS version or downgrade to a stable version if no patch exists for 7.1.1-7040) and restrict SSL-VPN access to trusted IP ranges as a compensating control.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
SonicosOperating system
Affected:= 7.1.1-7040

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the installed SonicOS firmware version
    Access the SonicWall management interface or run 'show version' via CLI to retrieve the current firmware version
    Affected if The displayed version is exactly 7.1.1-7040
  2. Locate the SSL-VPN configuration
    Navigate to the SonicWall web interface under VPN > SSL-VPN or check via CLI with 'show ssl-vpn config'
    Affected if SSL-VPN is enabled and configured on the device
  3. Verify SSL-VPN service status
    Check if the SSL-VPN listener is active using 'show ssl-vpn status' or inspect the service bindings in the management interface
    Affected if The SSL-VPN service is running and listening on the WAN interface
  4. Confirm network exposure of SSL-VPN
    Review the SSL-VPN access profile to determine if it accepts connections from untrusted or external networks, or check firewall rules for VPN traffic from any-source
    Affected if SSL-VPN is accessible from external/untrusted IP addresses rather than restricted to trusted ranges only

You are affected if your SonicWall device runs exactly version 7.1.1-7040 and has SSL-VPN enabled and exposed to untrusted networks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply a patched firmware version from SonicWall (upgrade to a newer SonicOS version or downgrade to a stable version if no patch exists for 7.1.1-7040) and restrict SSL-VPN access to trusted IP ranges as a compensating control.

Fix this in Sonicos Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-22394 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data