A6 FirmwareOperating system · Haier

CVE-2019-15359

MEDIUM · 5.5 CVSS v3.1 Published 2019-11-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
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
The Haier A6 Android device with a build fingerprint of Haier/A6/A6:8.1.0/O11019/1534219877:userdebug/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

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 confidence

The Haier A6 Android device contains a pre-installed Mediatek app (com.mediatek.wfo.impl, version 8.1.0) with an exported interface that allows any co-located application to modify system properties without authorization. This represents a local privilege escalation vulnerability where a malicious app can abuse the unprotected system property setter to elevate privileges or modify system behavior.

MitigationApply vendor firmware update from Haier; if unavailable, attempt to disable or remove the vulnerable pre-installed app through device administrator settings or MDM policy, though this may require elevated privileges.

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
A6 FirmwareOperating system
Affected:all versions

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

CVSS:3.1/AV:L/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 checks

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

  1. Identify device model
    Check device settings under 'About phone' or run 'getprop ro.product.model' via ADB shell to confirm the device is Haier A6
    Affected if Device model is Haier A6 with any firmware version
  2. Verify vulnerable app is present
    Run 'pm list packages | grep mediatek.wfo.impl' via ADB shell or check installed apps for com.mediatek.wfo.impl
    Affected if Package com.mediatek.wfo.impl is installed on the device
  3. Check app version
    Run 'dumpsys package com.mediatek.wfo.impl | grep versionName' via ADB shell to obtain the installed version
    Affected if Version is 8.1.0 or if the package exists regardless of version (all versions affected)
  4. Verify exported component exists
    Run 'dumpsys package com.mediatek.wfo.impl' and check for 'android:exported=true' in the activity/service receiver declarations, or use an APK analysis tool to inspect AndroidManifest.xml
    Affected if The app declares exported components in its manifest that are accessible to other apps

A Haier A6 device with com.mediatek.wfo.impl (version 8.1.0) installed and with exported components is affected by this privilege escalation vulnerability.

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

Apply vendor firmware update from Haier; if unavailable, attempt to disable or remove the vulnerable pre-installed app through device administrator settings or MDM policy, though this may require elevated privileges.

Fix this in A6 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

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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-2019-15359 in production — separate from our analysis above.

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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
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