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Weekly Signal
Live intelligence Updated 21 Aug 2026 · 22:11 UTC

SonicWall · SMA1000 appliance, Sma6200 Firmware, Sma6210 Firmware +3 more

CVE-2025-40602

SonicWall SMA1000 Missing Authorization Vulnerability

Recommended action

Validate affected assets and exposure now, then remediate on an accelerated schedule. SonicWall Security advisory SNWLID 2025 0019

View response plan
CVSS6.6
EPSS2.1%
KEVYes
ExploitationConfirmed exploitation
RemediationNot yet verified ↓

Assessment

Why it matters

CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 2.1%; technical severity is CVSS 6.6.

A local privilege escalation vulnerability due to insufficient authorization in the SonicWall SMA1000 appliance management console (AMC).

Who should care

  • Teams operating SMA1000 appliance, Sma6200 Firmware, Sma6210 Firmware +3 more
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether SMA1000 appliance, Sma6200 Firmware, Sma6210 Firmware +3 more is present in the environment.
  2. Identify affected versions and establish whether vulnerable services are exposed or reachable.
  3. SonicWall Security advisory SNWLID 2025 0019
  4. Review relevant security telemetry for evidence of attempted or successful exploitation.
  5. Document the remediation decision and track it to verified completion.

Treatment intelligence

Remediation intelligence

Not yet verified

Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.

Verification noteAutomated link verification has not completed for this guidance yet.

Advisory

Required Action

Technical details

CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-862
Affected versions
SonicWall SMA1000 appliance; SonicWall Sma6200 Firmware (End Excluding 12.4.3-03245 | Start Including 12.5.0, End Excluding 12.5.0-02283); SonicWall Sma6210 Firmware (End Excluding 12.4.3-03245 | Start Including 12.5.0, End Excluding 12.5.0-02283); SonicWall Sma7200 Firmware (End Excluding 12.4.3-03245 | Start Including 12.5.0, End Excluding 12.5.0-02283); SonicWall Sma7210 Firmware (End Excluding 12.4.3-03245 | Start Including 12.5.0, End Excluding 12.5.0-02283); SonicWall Sma8200v (End Excluding 12.4.3-03245 | Start Including 12.5.0, End Excluding 12.5.0-02283)
Fixed versions
SonicWall Sma6200 Firmware (Fixed from 12.4.3-03245, 12.5.0-02283); SonicWall Sma6210 Firmware (Fixed from 12.4.3-03245, 12.5.0-02283); SonicWall Sma7200 Firmware (Fixed from 12.4.3-03245, 12.5.0-02283); SonicWall Sma7210 Firmware (Fixed from 12.4.3-03245, 12.5.0-02283); SonicWall Sma8200v (Fixed from 12.4.3-03245, 12.5.0-02283)
Published
18 December 2025
Attack vector
Network
Privileges required
High
User interaction
None

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 2.1%
  4. Signal calculated at 65

External references

Live public intelligence This assessment combines public-source evidence. Validate the affected product, version and exposure against your own environment before making a risk decision.