Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 22 May 2025.
Sma 200 FirmwareOperating system · Sonicwall

CVE-2023-44221

HIGH · 7.2 CVSS v3.1 Published 2023-12-05
Fix available
A fix is available. Upgrade to after 10.2.1.9-57sv or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild High EPSS 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
Improper neutralization of special elements in the SMA100 SSL-VPN management interface allows a remote authenticated attacker with administrative privilege to inject arbitrary commands as a 'nobody' user, potentially leading to OS Command Injection Vulnerability.

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 · high confidence

Improper neutralization of special elements in the SMA100 SSL-VPN management interface allows a remote authenticated attacker with administrative privileges to inject arbitrary OS commands, executing as the 'nobody' user. This is a command injection vulnerability in the web-based management interface of the SSL-VPN appliance.

MitigationApply the vendor patch for CVE-2023-44221 to the SMA100 SSL-VPN device. Restrict management interface access to trusted networks and implement least-privilege administrative accounts where possible.

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
Sma 200 FirmwareOperating system
Affected:<= 10.2.1.9-57sv
Sma 210 FirmwareOperating system
Affected:<= 10.2.1.9-57sv
Sma 400 FirmwareOperating system
Affected:<= 10.2.1.9-57sv
Sma 410 FirmwareOperating system
Affected:<= 10.2.1.9-57sv
Sma 500v FirmwareOperating system
Affected:<= 10.2.1.9-57sv

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

CVSS:3.1/AV:N/AC:L/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 device model
    Log into the SMA web interface and navigate to System > Status or check the device label to confirm the model number (SMA 200, 210, 400, 410, or 500v)
    Affected if Device is not one of the listed models (200, 210, 400, 410, 500v)
  2. Check installed firmware version
    In the SMA web interface, go to System > Status and locate the Firmware Version field; alternatively, run 'sysctl get' or check the about page
    Affected if Firmware version is 10.2.1.9-57sv or lower
  3. Verify management interface accessibility
    Confirm whether the SMA management interface (HTTPS on port 443) is reachable from untrusted networks by reviewing firewall rules or network exposure
    Affected if Management interface is exposed to untrusted networks without VPN or IP restrictions
  4. Check for unauthorized command execution
    Review system logs under Log > System or /var/log/messages for suspicious commands spawned from administrative sessions, look for unusual 'nobody' user process executions
    Affected if Unexpected commands or shells are spawned under the 'nobody' user from administrative IP addresses

You are affected if you have a SMA 200, 210, 400, 410, or 500v device running firmware version 10.2.1.9-57sv or lower, with the management interface accessible to the attacker.

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 a release after 10.2.1.9-57sv
Interim mitigation

Apply the vendor patch for CVE-2023-44221 to the SMA100 SSL-VPN device. Restrict management interface access to trusted networks and implement least-privilege administrative accounts where possible.

Recommended fix Moderate confidence

10.2.1.9-57sv or later (latest available SMA 100 series firmware from SonicWall)

  1. Identify the current firmware version of the SonicWall SMA device via the web management interface under System > Status or via the CLI command 'sysinfo'
  2. Download the latest firmware version from the official SonicWall support portal at support.sonicwall.com
  3. Backup the current device configuration from Settings > Configuration > Backup
  4. Upload and install the new firmware through the web interface under Settings > Administration > Firmware Update, or via CLI using 'firmware upgrade' command
  5. Verify the firmware installation was successful and the device is functioning normally
  6. After upgrade, validate that the command injection vulnerability is resolved by confirming the fix addresses improper neutralization of special elements in the SSL-VPN management interface
Caveat Review SonicWall release notes for the target firmware version to check for any configuration changes or feature modifications that may affect existing setups

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

Fix this in Sma 200 Firmware Exploited in the wild — priority engagement
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,280
Get it fixed fast

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,648.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-44221 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2023-44221 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