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Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 24 Dec 2025.
Sma6200 FirmwareOperating system · Sonicwall

CVE-2025-40602

MEDIUM · 6.6 CVSS v3.1 Published 2025-12-18
Fix available
A fix is available. Upgrade to 12.4.3-03245 / 12.5.0-02283 or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild Remotely reachable 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
A local privilege escalation vulnerability due to insufficient authorization in the SonicWall SMA1000 appliance management console (AMC).

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

A local privilege escalation vulnerability exists in the SonicWall SMA1000 appliance management console (AMC) due to insufficient authorization checks. An authenticated local attacker could exploit inadequate access controls in the AMC to elevate privileges beyond their assigned role, potentially gaining administrative access to the appliance.

MitigationApply the vendor-supplied patch or firmware update for the SMA1000 series when available. Until then, restrict physical and logical access to the AMC to trusted administrative personnel only and monitor for unauthorized access attempts.

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
Sma6200 FirmwareOperating system
Affected:< 12.4.3-03245>= 12.5.0, < 12.5.0-02283
Sma6210 FirmwareOperating system
Affected:< 12.4.3-03245>= 12.5.0, < 12.5.0-02283
Sma7200 FirmwareOperating system
Affected:< 12.4.3-03245>= 12.5.0, < 12.5.0-02283
Sma7210 FirmwareOperating system
Affected:< 12.4.3-03245>= 12.5.0, < 12.5.0-02283
Sma8200vApplication
Affected:< 12.4.3-03245>= 12.5.0, < 12.5.0-02283

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
High
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:H/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 SMA appliance model
    Log into the SMA device and navigate to the dashboard or system status page to confirm the exact model number (Sma6200, Sma6210, Sma7200, Sma7210, or Sma8200v)
    Affected if The model is one of the affected SMA1000 series appliances
  2. Check installed firmware version
    Navigate to System > Status or About page in the SMA management interface to view the current firmware version, or run the command 'diag -v' or check '/var/log/messages' for version information
    Affected if Firmware version is < 12.4.3-03245 OR >= 12.5.0 and < 12.5.0-02283
  3. Verify AMC is accessible
    Confirm the Appliance Management Console (AMC) feature is enabled and accessible by accessing the AMC interface via the management IP or checking AMC service status
    Affected if AMC is enabled and accessible to local users
  4. Review user role assignments
    Check the local user accounts and their assigned roles in the SMA management console under User Management or Access Management settings
    Affected if There are non-administrator local user accounts configured

A user is affected if they run an SMA1000 series appliance (6200, 6210, 7200, 7210, or 8200v) with firmware version below 12.4.3-03245 or between 12.5.0 and 12.5.0-02283, where AMC is accessible to local authenticated users.

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.

dbcve · scoped
Upgrade available Upgrade to 12.4.3-03245 / 12.5.0-02283 or later
Fixed in 12.4.3-0324512.5.0-02283
Interim mitigation

Apply the vendor-supplied patch or firmware update for the SMA1000 series when available. Until then, restrict physical and logical access to the AMC to trusted administrative personnel only and monitor for unauthorized access attempts.

Recommended fix Moderate confidence

Upgrade to firmware 12.4.3-03245 or later (12.4.x branch) OR firmware 12.5.0-02283 or later (12.5.x branch)

  1. 1. Identify the current firmware version of the affected SonicWall SMA100 appliance (Sma6200, Sma6210, Sma7200, Sma7210, or Sma8200v)
  2. 2. If running version < 12.4.3-03245, plan upgrade to version 12.4.3-03245 or later in the 12.4.x branch
  3. 3. If running version >= 12.5.0 and < 12.5.0-02283, plan upgrade to version 12.5.0-02283 or later in the 12.5.x branch
  4. 4. Before upgrading, backup the current configuration
  5. 5. Download the appropriate firmware from the official SonicWall support portal (psirt.global.sonicwall.com)
  6. 6. Upload and apply the firmware upgrade through the SMA management console
  7. 7. After upgrade, verify the new firmware version is running and confirm the management console is functional
  8. 8. Validate that the fix addresses the authorization vulnerability
Caveat Standard firmware upgrade risks apply - ensure backup before proceeding; test in staging if possible

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Sma6200 Firmware Exploited in the wild — priority engagement
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,120
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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-2025-40602 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