CVE-2024-39430
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 faceid servive, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no additional execution privileges needed
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 confidenceA missing bounds check in the faceid service allows an out-of-bounds write vulnerability. An attacker with local access can trigger this condition, causing a denial of service. The vulnerability does not require elevated privileges to exploit.
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= 12.0CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Verify Android versionCheck the device Settings > About Phone > Android version to confirm it is exactly 12.0Affected if Android version is 12.0
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Confirm faceid service presenceCheck if biometric authentication with face recognition is enrolled or available on the device through Settings > Security > Face ID or equivalent pathAffected if Face ID/face recognition feature is present and configured on the device
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Check for service availabilityVerify the faceid service process is running on the device using system process listings or diagnostic toolsAffected if The faceid service daemon is active on the device
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Inspect for service crashesReview system logs (logcat) or crash reports for any faceid-related service failures, out-of-bounds errors, or unexpected terminationsAffected if Faceid service has crashed or logged bounds-related errors
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Assess local access exposureEvaluate whether the device allows local (physical) access by untrusted users or whether debugging/adb interfaces remain accessible without authenticationAffected if Physical or local shell access to the device is possible without proper authentication controls
A device is affected if it runs Android 12.0 and has the faceid service present and enabled, as the missing bounds check vulnerability exists in that specific configuration.
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 vendor-supplied patch for CVE-2024-39430 when available. Until then, restrict local access to systems running the faceid service and monitor for unexpected service disruptions.
- Consultation4.0 h
- Implementation8.0 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 $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-39430 — 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-2024-39430 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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- 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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