CVE-2018-17923
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 · uneditedSAGA1-L8B with any firmware versions prior to A0.10 are vulnerable to an attack that an attacker with physical access to the product may able to reprogram it.
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 SAGA1-L8B device with firmware versions prior to A0.10 lacks proper authentication or tamper-resistant mechanisms for firmware updates, allowing an attacker with physical access to reprogram the device. This indicates a failure to secure the firmware update interface against unauthorized access.
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< a0.10CVSS 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
- Physical
- Complexity
- High
- Privileges
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:C/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 SAGA1-L8B device in environmentLocate all physical or managed instances of the Sagaradio Saga1 L8b device. Check device labels, inventory records, or network management interfaces for the exact model designation.Affected if Device model is confirmed to be Sagaradio Saga1 L8b or Saga1 L8b
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Retrieve current firmware versionAccess the device's firmware information through its management console, web interface, CLI, or system settings menu. Look for a version field labeled firmware version, software version, or build version.Affected if Device displays a firmware version number or code
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Compare version to affected rangeCompare the installed firmware version against A0.10. Check if the version is any version prior to A0.10 such as A0.09, A0.08, A0.07 or earlier numerical versions.Affected if Installed firmware version is less than A0.10
You are affected if you have a SAGA1-L8B device running firmware version below A0.10, as the device lacks authentication mechanisms for its firmware update interface.
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 dataUpdate device firmware to version A0.10 or later which should contain proper authentication for firmware updates. Additionally, implement physical access controls to prevent unauthorized physical access to the device.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-17923 — 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-2018-17923 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