CVE-2016-2333
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 · uneditedSysLINK SL-1000 Machine-to-Machine (M2M) Modular Gateway devices with firmware before 01A.8 use the same hardcoded encryption key across different customers' installations, which allows attackers to defeat cryptographic protection mechanisms by leveraging knowledge of this key from another installation.
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 SysLINK SL-1000 M2M gateway devices use a hardcoded encryption key in firmware versions prior to 01A.8. This key is identical across all customer installations rather than being unique per deployment. An attacker who obtains the key from one installation can decrypt traffic and defeat cryptographic protections on any other installation running the same vulnerable firmware.
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 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/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 device modelIdentify the SysLINK SL-1000 Modular Gateway device in your environment through device inventory, network discovery, or physical device labelingAffected if The device is a Systech Syslink SL-1000 Modular Gateway
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Retrieve firmware versionAccess the device management interface (web UI, CLI, or console) and locate the firmware version information, typically found under System Info, Device Status, or About sectionsAffected if Unable to determine firmware version or device does not report version information
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Compare firmware version to fixed releaseCompare your installed firmware version against 01A.8 - versions prior to 01A.8 (such as 01A.7, 01A.6, etc.) are affectedAffected if Firmware version is lower than 01A.8 (e.g., 01A.7, 01A.6, or any version without the '.8' suffix)
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Assess key uniquenessThere is no direct way to verify key uniqueness from the device itself; the vulnerability exists in any firmware version prior to 01A.8 regardless of configurationAffected if Firmware version is prior to 01A.8 - the hardcoded key vulnerability is present
Your environment is affected if you have any SysLINK SL-1000 devices running firmware versions below 01A.8, as these contain the identical hardcoded encryption key across all installations.
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 dataUpgrade firmware to version 01A.8 or later to obtain a unique encryption key. If no vendor update is available, consider network segmentation and monitoring for unauthorized use of the known key.
- Consultation6.0 h
- Implementation12.0 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 $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-2333 — 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-2016-2333 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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