CVE-2020-0014
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 · uneditedIt is possible for a malicious application to construct a TYPE_TOAST window manually and make that window clickable. This could lead to a local escalation of privilege with no additional execution privileges needed. User action is needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-128674520
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 confidenceA type confusion vulnerability in Android's window manager allows malicious applications to manually construct TYPE_TOAST windows and make them clickable/interactive. Since TYPE_TOAST windows are normally non-interactive overlays, this enables a local privilege escalation where a malicious app can overlay legitimate app UI elements and trick users into clicking hidden buttons, with no additional execution privileges required but user interaction necessary.
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= 8.0= 8.1= 9.0= 10.0CVSS 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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/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 checksWork through these to decide whether this CVE applies to you.
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Check Android OS versionNavigate to Settings > About Phone (or Settings > System > About Phone) and look at the Android version fieldAffected if The version listed is exactly 8.0, 8.1, 9.0, or 10.0
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Check security patch levelNavigate to Settings > About Phone > Security patch level (or Settings > System > Security update) and note the date shownAffected if The security patch level is earlier than the month Google addressed this CVE in their monthly bulletin (patch not yet applied to your version)
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Verify app installation sources policyGo to Settings > Apps > Special access > Install unknown apps (or Settings > Security > Unknown sources) to see which apps can install other appsAffected if Applications from untrusted sources are permitted to install apps, which increases the attack surface for this vulnerability
You are affected if your device runs Android 8.0, 8.1, 9.0, or 10.0 and has not received the corresponding security patch that addresses this vulnerability.
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 Android security patches (Google's monthly security bulletins address this). Users should only install applications from trusted sources like Google Play. Organizations should enforce MDM policies restricting app installation from unknown sources and ensure timely OS updates.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $10,240.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-0014 — 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-2020-0014 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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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.
- 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