CVE-2025-32821
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 · uneditedA vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN admin privileges can with admin privileges can inject shell command arguments to upload a file on the appliance.
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 confidenceThe SMA100 appliance contains a command injection vulnerability where an authenticated attacker with SSLVPN admin privileges can inject shell command arguments to facilitate unauthorized file uploads onto the appliance. This combines privilege escalation through command injection with file upload capabilities, potentially allowing arbitrary code execution or configuration manipulation.
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< 10.2.1.15-81sv< 10.2.1.15-81sv< 10.2.1.15-81sv< 10.2.1.15-81sv< 10.2.1.15-81sv< 10.2.1.15-81svCVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check SMA appliance firmware versionLog into the SMA administrative web interface and navigate to System > Status, or use the CLI command 'version' to retrieve the current firmware versionAffected if The firmware version is lower than 10.2.1.15-81sv on any SMA 100, 200, 210, 400, 410, or 500v appliance
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Confirm SSLVPN admin access is enabledIn the SMA web interface, go to Users > SSLVPN Settings or the equivalent admin section to verify whether SSLVPN-based administrative access is currently enabledAffected if SSLVPN admin access is enabled and accessible to authenticated users
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Review admin user accounts with SSLVPN privilegesNavigate to the Users or Administrators management page and enumerate all accounts granted SSLVPN admin privilegesAffected if Any user account with SSLVPN admin privileges exists, as this provides the authentication level required to exploit the vulnerability
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Examine logs for suspicious file upload activityAccess the SMA logs under Log > View or System > Logs and search for file upload operations, particularly those initiated via SSLVPN admin sessions, or any unusual shell command executionsAffected if Logs show unexpected file uploads or shell command executions originating from SSLVPN admin sessions
The environment is affected if the SMA 100 appliance runs firmware version below 10.2.1.15-81sv and has SSLVPN admin access enabled for any user account.
Generated from the published advisory. Verify against your own configuration.
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 · scoped10.2.1.15-81sv
Apply the vendor-supplied patch for SMA100 firmware immediately. Until patched, restrict SSLVPN admin access to a minimal set of trusted IP addresses using access control lists and monitor for unauthorized administrative activities.
SMA 100/200/210/400/410/500v Firmware version 10.2.1.15-81sv or later
- 1. Identify the specific SMA model (SMA 100, 200, 210, 400, 410, or 500v) in your environment
- 2. Access the SMA appliance management interface
- 3. Navigate to System > Settings or Firmware section
- 4. Check the current firmware version (ensure it is below 10.2.1.15-81sv)
- 5. Download firmware version 10.2.1.15-81sv or later from the official SonicWall support portal (psirt.global.sonicwall.com)
- 6. Upload the firmware file through the management interface or via secure file transfer
- 7. Initiate the firmware upgrade and allow the process to complete
- 8. Reboot the device as prompted by the upgrade process
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-32821 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-32821 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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