Galaxy A5 FirmwareOperating system · Samsung

CVE-2019-15434

HIGH · 7.8 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 →
80/100
Remediation priority · High
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 Samsung A5 Android device with a build fingerprint of samsung/a5y17ltexx/a5y17lte:8.0.0/R16NW/A520FXXS8CSC5:user/release-keys contains a pre-installed app with a package name of com.samsung.android.themecenter app (versionCode=7000000, versionName=7.0.0.0) that allows other pre-installed apps to perform app installation via an accessible app component. This capability can be accessed by any pre-installed app on the device which can obtain signatureOrSystem permissions that are required by other other pre-installed apps that exported their capabilities to other pre-installed app.

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 Samsung A5 Android device contains a pre-installed themecenter app (com.samsung.android.themecenter) that exposes an exported component allowing privileged app installation. This component can be invoked by any pre-installed app holding signatureOrSystem permissions, effectively bypassing Android's standard permission model and enabling unauthorized app installation.

MitigationSamsung must release a firmware update patching the themecenter app to enforce proper permission checks on the exported installation component. Users should apply available security patches and avoid side-loading apps from untrusted sources.

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
Galaxy A5 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
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/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. Confirm device model is Samsung Galaxy A5
    Check the device model number in Settings > About Phone > Model Number, or run `getprop ro.product.model` via ADB
    Affected if Model number contains SM-A500 or A5 (2015/2016/2017 variants)
  2. Verify themecenter app is installed
    Check for package com.samsung.android.themecenter using ADB command: `pm list packages | grep themecenter`, or check in Settings > Apps > All Apps
    Affected if Package com.samsung.android.themecenter is present on the device
  3. Confirm firmware version is affected
    Check Android version in Settings > About Phone > Android version, or run `getprop ro.build.version.release` via ADB. Since all firmware versions are affected, any version confirms exposure
    Affected if Any Android/firmware version is installed on the Galaxy A5 (vulnerability affects all versions)
  4. Check for pre-installed apps with elevated permissions
    Review pre-installed apps: run `dumpsys package signatureOrSystem` via ADB to list apps holding signatureOrSystem permissions
    Affected if Any pre-installed app with signatureOrSystem permissions exists (these can invoke the vulnerable themecenter component)

If the device is a Samsung Galaxy A5 with the com.samsung.android.themecenter app installed, the device is affected by this vulnerability regardless of firmware version.

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

Samsung must release a firmware update patching the themecenter app to enforce proper permission checks on the exported installation component. Users should apply available security patches and avoid side-loading apps from untrusted sources.

Fix this in Galaxy A5 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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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-2019-15434 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
  • No weaponised exploit code, or anything meant to cause harm
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