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Tz300p FirmwareOperating system · Sonicwall

CVE-2022-22277

MEDIUM · 5.3 CVSS v3.1 Published 2022-04-27
Fix available
A fix is available. Upgrade to 6.5.4.10 / 7.0.1.0 or later.
See remediation →
62/100
Remediation priority · Elevated
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
A vulnerability in SonicOS SNMP service resulting exposure of Wireless Access Point sensitive information in cleartext.

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 vulnerability in the SonicOS SNMP service allows exposure of Wireless Access Point sensitive information in cleartext. The SNMP service transmits sensitive configuration or credential data without encryption, enabling an unauthenticated network attacker to intercept this information.

MitigationImplement SNMPv3 with encryption (AuthPriv security level) or disable SNMP if not required, and restrict SNMP access to authorized management networks.

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
Tz300p FirmwareOperating system
Affected:< 6.5.4.10= 7.0.0
Tz300w FirmwareOperating system
Affected:< 6.5.4.10= 7.0.0
Tz350 FirmwareOperating system
Affected:< 6.5.4.10= 7.0.0
Tz350w FirmwareOperating system
Affected:< 6.5.4.10= 7.0.0
Nssp 10700 FirmwareOperating system
Affected:< 7.0.1.0
Nssp 11700 FirmwareOperating system
Affected:< 7.0.1.0
Nssp 12400 FirmwareOperating system
Affected:< 7.0.1.0
Nssp 12800 FirmwareOperating system
Affected:< 7.0.1.0

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
Low
Integrity
None
Availability
None

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

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 Sonicwall device model
    Log into the Sonicwall management interface and navigate to System > Status to view the appliance model name (e.g., Tz300, Nssp 11700)
    Affected if The model matches one of the affected products: Tz300p, Tz300w, Tz350, Tz350w, Nssp 10700, Nssp 11700, Nssp 12400, or Nssp 12800
  2. Check the installed firmware version
    In the Sonicwall management interface, go to System > Status and locate the Firmware Version field
    Affected if For Tz300p/Tz300w/Tz350/Tz350w: version is below 6.5.4.10 or equals 7.0.0. For Nssp 10700/11700/12400/12800: version is below 7.0.1.0
  3. Verify if SNMP service is enabled
    In the Sonicwall management interface, navigate to System > SNMP and check if Enable SNMP is checked/enabled
    Affected if SNMP service is enabled on the device
  4. Determine the SNMP version in use
    In the SNMP settings page, check which SNMP version is configured (v1/v2c or v3) and whether AuthPriv security level is selected for v3
    Affected if SNMP is configured using v1 or v2c, or v3 is used without AuthPriv (no encryption)
  5. Confirm if Wireless Access Point management is configured
    In the Sonicwall interface, check if Wireless > Access Points or similar wireless management settings are configured and enabled
    Affected if Wireless AP management is enabled and the device is using the vulnerable SNMP configuration

The device is affected if it is one of the listed models, runs a firmware version in the vulnerable range, has SNMP enabled with v1/v2c or v3 without encryption, and has wireless access point management configured.

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 6.5.4.10 / 7.0.1.0 or later
Fixed in 6.5.4.107.0.1.0
Interim mitigation

Implement SNMPv3 with encryption (AuthPriv security level) or disable SNMP if not required, and restrict SNMP access to authorized management networks.

Recommended fix Moderate confidence

Tz series: 6.5.4.10 or later (or 7.0.1+ if moving to 7.x); NSSP series: 7.0.1.0 or later

  1. 1. Identify the exact SonicWall device model (Tz300p, Tz300w, Tz350, Tz350w, Nssp 10700, Nssp 11700, Nssp 12400, or Nssp 12800)
  2. 2. Access the SonicWall device management interface or CLI
  3. 3. Navigate to the Firmware Update or System > Settings section
  4. 4. Download the appropriate firmware from the official SonicWall support portal (support.sonicwall.com)
  5. 5. Upload and install the firmware upgrade to a fixed version (6.5.4.10 or later for Tz series; 7.0.1.0 or later for NSSP series)
  6. 6. After upgrade, verify the SNMP service configuration and confirm sensitive information is no longer exposed
  7. 7. Test that wireless access point functionality remains operational post-upgrade
Caveat Review release notes for any configuration changes required when upgrading from older firmware branches; test in non-production environment first

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

Fix this in Tz300p Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,330
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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-2022-22277 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