CVE-2016-8278
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 USG9520, USG9560, and USG9580 unified security gateways with software before V300R001C01SPCa00 allow remote attackers to cause a denial of service (device restart) via an unspecified URL.
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 vulnerability allows remote unauthenticated attackers to cause a denial of service on affected Huawei USG unified security gateways (USG9520, USG9560, USG9580) by requesting a specific URL, resulting in device restart. The issue stems from insufficient input validation or access controls on certain web management interface URLs before software version V300R001C01SPCa00.
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= v300r001c01= v300r001c01= v300r001c01CVSS 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 USG modelAccess the device console or web management interface and locate the product model information, typically displayed in the system info or device status pageAffected if The model is USG9520, USG9560, or USG9580
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Determine the software versionVia console, run 'display version' or via web interface, check the system information page to retrieve the installed software version numberAffected if The version displayed is V300R001C01 (exactly) or any version prior to V300R001C01SPCa00
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Verify the web management interface is accessibleAttempt to access the device's web management interface over HTTP/HTTPS from a remote location, or check firewall rules to confirm port 80 or 443 is open to untrusted networksAffected if The web management interface is exposed to untrusted networks without IP restrictions
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Confirm the vulnerable version is in useCompare the identified version against the affected range: any version lower than V300R001C01SPCa00 on the USG9520/9560/9580 modelsAffected if The device runs any version below V300R001C01SPCa00 and has the web management interface accessible
The environment is affected if the device is a USG9520, USG9560, or USG9580 running software version V300R001C01 or earlier, and the web management interface is accessible to untrusted networks.
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 vendor-supplied software update V300R001C01SPCa00 or later. As a compensating control, restrict access to the device's web management interface to trusted IP addresses only via firewall rules, and consider deploying a WAF to filter malicious requests.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-8278 — 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-2016-8278 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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