Ip Phone 8800 Series FirmwareOperating system · Cisco
CVE-2016-1434
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 license-certificate upload functionality on Cisco 8800 phones with software 11.0(1) allows remote authenticated users to delete arbitrary files via an invalid file, aka Bug ID CSCuz03010.
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 license-certificate upload functionality in Cisco 8800 IP phones running software 11.0(1) contains a vulnerability allowing authenticated remote users to delete arbitrary files on the device by uploading an invalid file. This suggests improper input validation or path traversal in the file upload handling routine, enabling file system access beyond the intended scope.
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
Ip Phone 8800 Series FirmwareOperating system
= 11.0\(1\)CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/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 device modelCheck if the device is a Cisco 8800 Series IP Phone by reviewing the device label, web interface header, or via SNMP inventory queriesAffected if The device is not a Cisco 8800 Series IP Phone
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Check the firmware versionAccess the phone web interface under Help > About, or use the Cisco IOS CLI command 'show version' via console/Telnet/SSH, or query via SNMP OID 1.3.6.1.4.1.9.9.441.1.1.2Affected if The firmware version is exactly 11.0(1)
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Verify the web management interface is enabledCheck if the phone HTTP/HTTPS service is active by attempting to access the web interface or reviewing the phone configuration for 'web-management' or 'http server' settingsAffected if The web management interface is enabled and accessible
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Confirm administrative access is permittedReview access control lists or firewall rules that govern access to the phone's management interface, and verify that remote administrative authentication is configuredAffected if The management interface is reachable from untrusted networks or allows authenticated remote access
The environment is affected if the device is a Cisco 8800 Series IP Phone running exactly firmware version 11.0(1) with the web management interface enabled and accessible to authenticated remote users.
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 management interface access to trusted networks, enforce strong authentication for administrative functions, and apply any available Cisco firmware updates for the 8800 series phones.
Fix this in Ip Phone 8800 Series Firmware
Scoped from the published advisory
- Consultation4.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,152.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-1434 — 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-2016-1434 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