CVE-2019-20026
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 WebPro interface in NEC SV9100 software releases 7.0 or higher allows unauthenticated remote attackers to reset all existing usernames and passwords to default values via a crafted request.
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 NEC SV9100 WebPro interface contains an unauthenticated password reset vulnerability in software releases 7.0 and higher. Attackers can send a specially crafted request to the WebPro web interface that triggers a mass reset of all user credentials to manufacturer default values, effectively granting administrative access to the system without any authentication.
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>= 7.0CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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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Identify the installed firmware versionAccess the NEC SV9100 system administration interface or check system documentation to determine the current firmware version. On the physical system or through its management console, locate the firmware version information typically found in system status or version details.Affected if The installed firmware version is 7.0 or higher. Versions below 7.0 are not affected by this vulnerability.
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Verify WebPro interface is enabledCheck the NEC SV9100 configuration to determine if the WebPro web interface feature is enabled. This is typically found in the system network settings or web service configuration menu within the phone system administration panel.Affected if The WebPro web interface is enabled and operational on the system.
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Assess WebPro network exposureExamine network configuration and firewall rules to determine if the WebPro interface (typically TCP port 80 or 443) is accessible from network segments outside of trusted management networks. Review any port forwarding rules or ACLs that may expose the interface.Affected if The WebPro interface is reachable from untrusted or external network segments, making it accessible to potential attackers.
The environment is affected if the NEC SV9100 is running firmware version 7.0 or higher, the WebPro interface is enabled, and the interface is accessible to untrusted networks or attackers.
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 dataRestrict network access to the WebPro interface to trusted management networks only, and apply any vendor-supplied patches or firmware updates that address this authentication bypass. Consider implementing additional authentication layers such as VPN access for management interfaces.
- Consultation3.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2019-20026 — 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-2019-20026 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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