CVE-2015-7930
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 · uneditedAdcon Telemetry A840 Telemetry Gateway Base Station has hardcoded credentials, which allows remote attackers to obtain administrative access via unspecified vectors.
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 Adcon Telemetry A840 Telemetry Gateway Base Station contains hardcoded administrative credentials embedded in its firmware. Attackers with network access to the device can use these credentials to bypass authentication and gain full administrative control of the gateway, potentially exposing sensitive telemetry data and enabling further network compromise.
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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/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.
-
Identify Adcon A840 devices on your networkScan your network for devices matching the Adcon Telemetry A840 Gateway Base Station. Check network device inventories or use Nmap to identify devices with HTTP/HTTPS services on common administrative ports (80, 443, 8080) that respond with Adcon-related headers or login pages.Affected if Adcon A840 Telemetry Gateway devices are present on your network.
-
Check firmware versionLog into the device web interface or check the device documentation to determine the installed firmware version. If the device is accessible via CLI, use the appropriate command to retrieve firmware information.Affected if The device is running any firmware version, as all versions are affected.
-
Verify remote administrative interface exposureDetermine if the device administrative web interface or CLI ports (HTTP/HTTPS, Telnet, SSH) are accessible from untrusted network segments or the internet. Review firewall rules and network segmentation configurations surrounding the device.Affected if Remote administrative interfaces are exposed to untrusted networks or the internet.
-
Test for default or hardcoded credentialsAttempt to authenticate to the device administrative interface using default credentials. Consult the device documentation or known vulnerability databases for default credential patterns associated with this device.Affected if Authentication succeeds using default or hardcoded credentials, indicating the hardcoded credentials have not been changed.
-
Review network access controlsAudit network ACLs, VLANs, and firewall rules to determine what network segments can reach the device administrative interfaces.Affected if The device administrative interfaces are reachable from network segments that do not require authentication or from outside the trusted network perimeter.
You are affected if you have Adcon A840 Telemetry Gateway devices with remote administrative access enabled and default/hardcoded credentials still in use.
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 dataImmediately change all default credentials on affected devices, disable remote administrative interfaces if not required, implement network segmentation to limit exposure, and contact Adcon for firmware updates that remove hardcoded credentials.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 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 $7,968.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-7930 — 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-2015-7930 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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