CVE-2023-0126
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 · uneditedPre-authentication path traversal vulnerability in SMA1000 firmware version 12.4.2, which allows an unauthenticated attacker to access arbitrary files and directories stored outside the web root directory.
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 confidencePre-authentication path traversal vulnerability in SMA1000 firmware version 12.4.2 allows unauthenticated attackers to access arbitrary files and directories outside the web root by manipulating path traversal sequences in HTTP requests.
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= 12.4.2CVSS 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
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 checksWork through these to decide whether this CVE applies to you.
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Confirm Sonicwall SMA1000 device modelAccess the device's web management interface or check device inventory/asset records to verify the model is SMA1000Affected if Device is not a Sonicwall SMA1000 (different models have different vulnerability statuses)
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Check firmware versionLog into the SMA1000 web interface and navigate to System > Status or use CLI command ' appliance version' to retrieve the installed firmware versionAffected if Firmware version equals 12.4.2 exactly (version 12.4.2 is the affected release)
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Verify management interface accessibilityDetermine if the SMA1000 web management interface (typically ports 443 or 8080) is reachable from network segments outside the trusted internal networkAffected if The management interface is exposed to untrusted networks (the vulnerability is pre-authentication, meaning exploitation does not require valid credentials)
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Inspect HTTP request handlingIf accessible, send a test HTTP GET request with path traversal sequences (such as /../../etc/passwd) to the web interface to verify if the application returns file contents outside the web rootAffected if The application returns file contents from paths outside the web root directory in response to path traversal sequences
You are affected if the device is a Sonicwall SMA1000 running firmware version 12.4.2 and its management interface is network-accessible.
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.
From vendor dataApply vendor-supplied firmware patch when available, or restrict network access to the SMA1000 management interface to trusted sources until patch can be applied.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-0126 — 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-2023-0126 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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- 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
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