dbcve.org
Honor V9 FirmwareOperating system · Huawei

CVE-2017-8166

MEDIUM · 6.8 CVSS v3.0 Published 2017-11-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
73/100
Remediation priority · Elevated
No privileges Zero-click

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 · unedited
Huawei mobile phones Honor V9 with the software versions before Duke-AL20C00B195 have an App Lock bypass vulnerability. An attacker could perform specific operations to bypass the App Lock to use apps on a target mobile phone.

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 confidence

The vulnerability allows bypassing the App Lock authentication mechanism on Huawei Honor V9 phones running software versions prior to Duke-AL20C00B195. An attacker can exploit specific operations to access locked applications without proper credentials, circumventing the intended access controls.

MitigationUpdate Huawei Honor V9 devices to software version Duke-AL20C00B195 or later to receive the vendor patch that addresses this App Lock bypass vulnerability.

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
Honor V9 FirmwareOperating system
Affected:< duke-al20c00b195

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
Physical
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the device model
    Check if the device is a Huawei Honor V9 (model number Duke-AL20 or related SKU)
    Affected if Device is not a Huawei Honor V9
  2. Check the firmware version
    Navigate to Settings > About Phone > Version on the device and compare the build number to duke-al20c00b195
    Affected if Firmware version is duke-al20c00b195 or earlier (prior to Duke-AL20C00B195)
  3. Verify App Lock is configured
    Check if App Lock feature is enabled in Settings > Security > App Lock on the device
    Affected if App Lock is enabled and the device meets the version criteria above

The device is affected if it is a Huawei Honor V9 running firmware version earlier than Duke-AL20C00B195 with App Lock enabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update Huawei Honor V9 devices to software version Duke-AL20C00B195 or later to receive the vendor patch that addresses this App Lock bypass vulnerability.

Fix this in Honor V9 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-8166 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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