CVE-2023-4419
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 · uneditedThe LMS5xx uses hard-coded credentials, which potentially allow low-skilled unauthorized remote attackers to reconfigure settings and /or disrupt the functionality of the device.
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 confidenceThe LMS5xx device uses hard-coded credentials embedded in firmware that allow unauthorized remote attackers to authenticate with administrative privileges. Attackers can exploit these static credentials to reconfigure device settings or disrupt functionality without requiring specialized skills.
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 dataall versionsall versionsall versionsCVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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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Identify device modelLocate the physical device or check network inventory for Sick LMS series laser scanners. Look for model numbers LMS531, LMS511, or LMS500.Affected if The device is a Sick LMS531, LMS511, or LMS500 laser scanner
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Check if remote administrative access is enabledAccess the device configuration or web interface and verify whether remote management features (web UI, telnet, or other administrative protocols) are turned on.Affected if Remote administrative access is enabled on the device
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Assess network exposureReview firewall rules, VLAN placement, and network segmentation to determine if the device management interface is reachable from untrusted or external networks.Affected if The device administrative interface is accessible from untrusted or unsegmented networks
You are affected if you have a Sick LMS531, LMS511, or LMS500 device with remote administrative access enabled and exposure to untrusted networks, since all firmware versions contain hard-coded credentials.
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 dataReplace hard-coded credentials with strong, unique passwords per device, disable remote administrative access if unnecessary, and implement network segmentation to limit exposure to untrusted networks.
- Consultation4.0 h
- Implementation6.0 h
- Testing2.0 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 $4,064.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-4419 — 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-2023-4419 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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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.
- 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