CVE-2019-9467
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 · uneditedIn the Bootloader, there is a possible kernel command injection due to missing command sanitization. This could lead to a local elevation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-80316910
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 confidenceIn the Android Bootloader, there is a kernel command injection vulnerability due to missing command sanitization. An attacker with System-level execution privileges can inject malicious commands through the bootloader, achieving local privilege escalation. No user interaction is required for exploitation.
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 dataall versionsCVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/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 checksWork through these to decide whether this CVE applies to you.
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Check Android Security Patch LevelGo to Settings > About Phone > Security Patch Level (or Settings > System > Security > Security Patch Level) and note the date shownAffected if The Security Patch Level is earlier than the date when the fix for CVE-2019-9467 was released (Google releases monthly patches; check if your patch level is before the fix was included)
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Identify Bootloader VersionPower off the device, then hold Volume Down + Power to enter bootloader mode. The bootloader version is displayed on the screen (usually a line like "bootloader-xxxx.xx" or similar)Affected if The bootloader version shown does not include the security fix for command injection, as indicated by the version being older than the patched release for your device model
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Check if Device Supports the FixConsult your device manufacturer's documentation or support pages to determine if a security patch containing the fix for CVE-2019-9467 was ever released for your specific device modelAffected if Your device model never received a security update that includes the fix for this bootloader command injection vulnerability
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Verify System-Level Access ContextDetermine if any application or process with System-level execution privileges exists on the device that could potentially interact with the bootloader interface (fastboot commands, bootloader debug interfaces)Affected if There is an untrusted or compromised process running with System privileges that could invoke bootloader commands, and your device lacks the command sanitization fix
The device is affected if the Android Security Patch Level does not include the fix for CVE-2019-9467, or if the bootloader version predates the patched release for that specific device model.
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 available Android security patch for this vulnerability, which adds proper command sanitization in the bootloader. For affected devices, flashing the latest vendor firmware or security patch level is required.
- Consultation3.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-9467 — 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-2019-9467 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
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