CVE-2007-5791
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 Vonage Motorola Phone Adapter VT 2142-VD does not properly verify that a SIP INVITE message originated from a legitimate server, which allows remote attackers to send spoofed INVITE messages, as demonstrated by a flood of messages triggering a denial of service, and by phone calls with malicious content.
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 Vonage Motorola Phone Adapter VT 2142-VD fails to validate the authenticity of incoming SIP INVITE messages, allowing remote attackers to spoof these messages and inject malicious content or trigger denial of service conditions.
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
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 modelLocate the physical Vonage Motorola Phone Adapter VT2142-VD or check network inventory documentation for this specific modelAffected if The device model matches VT2142-VD from Vonage/Motorola
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Verify SIP service is enabledAccess the device admin interface or run a port scan to check if port 5060 (standard SIP port) is listening and accepting connectionsAffected if SIP service is active and the device is listening on SIP ports
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Check network exposure of SIP portReview firewall rules or perform a network scan to determine if SIP port 5060 is accessible from untrusted or external networksAffected if The SIP port is exposed to untrusted networks or the internet without filtering
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Inspect SIP INVITE handling configurationExamine the device SIP settings through its admin interface for any authentication or validation options on incoming INVITE messagesAffected if No inbound SIP authentication or message validation is configured or enforced
The environment is affected if a Vonage Motorola Phone Adapter VT2142-VD is in use with SIP enabled and exposed to untrusted network segments, allowing unauthenticated SIP INVITE messages to reach the device.
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.
dbcve · scopedImplement network segmentation and firewall rules to restrict SIP traffic to trusted sources; if the device is still in production use, plan for replacement with modern VoIP hardware that supports proper SIP server authentication.
- This vulnerability affects the Motorola Phone Adapter VT2142-VD, which is legacy hardware from approximately 2007.
- No vendor patch or firmware update is available for this device as it has reached end-of-life.
- Consider replacing the affected device with a newer VoIP adapter or router that receives active security updates.
- If replacement is not immediately possible, network segmentation can be applied to limit the attack surface - isolate the VoIP devices on a separate VLAN with strict firewall rules.
- Contact Vonage or Motorola for official guidance, though the product is likely out of support.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2007-5791 — 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-2007-5791 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
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