CVE-2014-3221
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 · uneditedHuawei Eudemon8000E firewall with software V200R001C01SPC800 and earlier versions allows users to log in to the device using Telnet or SSH. When an attacker sends to the device a mass of TCP packets with special structure, the logging process becomes slow and users may be unable to log in to the device.
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 confidenceHuawei Eudemon8000E firewall software V200R001C01SPC800 and earlier versions contains a denial-of-service vulnerability where an unauthenticated remote attacker can send specially crafted TCP packets in high volume to degrade or block the logging process, preventing legitimate users from logging in via Telnet or SSH.
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<= v200r001c01spc800CVSS 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
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.
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Identify the device modelLog into the device or check inventory documentation to confirm the hardware is Huawei Eudemon8000E series firewall. Use 'display device' or 'display version' command in the device CLI.Affected if Device is not a Huawei Eudemon8000E model, then not affected.
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Check the firmware versionExecute 'display version' or 'display firmware version' in the device CLI to retrieve the installed firmware version string.Affected if Installed firmware version is V200R001C01SPC800 or any earlier version (versions prior to this release).
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Verify management interface exposureReview the network configuration using 'display ip interface' or 'display current-configuration | include telnet|ssh' to check if Telnet or SSH services are bound to externally accessible interfaces.Affected if Telnet or SSH management interfaces are reachable from untrusted networks (not just trusted management VLANs).
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Confirm logging feature statusExecute 'display logging' or 'display logbuffer' to check if system logging is enabled and functional.Affected if Logging is enabled and the system relies on it for management access verification.
The environment is affected if the device is a Huawei Eudemon8000E running firmware version V200R001C01SPC800 or earlier, and the device has Telnet/SSH management accessible over the network where an unauthenticated attacker could send packets to the logging subsystem.
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 dataApply the latest Huawei security patch or upgrade to a firmware version beyond V200R001C01SPC800. As a compensating control, consider restricting management interface exposure to trusted networks or implementing rate-limiting on Telnet/SSH services.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-3221 — 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-2014-3221 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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