CVE-2023-40639
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 SoundRecorder service, there is a possible missing permission check. This could lead to local information disclosure with no additional execution privileges
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 permission check in the SoundRecorder service allows local information disclosure. An attacker with local access can potentially access audio recordings or recording metadata without requiring elevated privileges, due to the absent authorization validation.
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= 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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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Verify Android version is 10.0Check Settings > About Phone > Android version or run 'adb shell getprop ro.build.version.release'Affected if Version displays exactly 10.0
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Confirm SoundRecorder app is installedRun 'adb shell pm list packages | grep -i soundrecorder' or check in Settings > Apps for SoundRecorderAffected if SoundRecorder package is present on the device
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Check if SoundRecorder exposes unprotected componentsUse 'adb shell dumpsys package <package_name>' to inspect the app's components and their permission protectionsAffected if Activities, services, or content providers lack proper permission checks or have empty permission attributes
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Test for unauthorized recording accessAttempt to invoke SoundRecorder intents from a non-privileged app context to see if access is granted without permission promptAffected if Recording functionality or metadata is accessible without user authorization
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Inspect app manifest for missing permissionsDecompile the SoundRecorder APK and examine AndroidManifest.xml for permission enforcement on exported componentsAffected if Components that should require permissions (like RECORD_AUDIO or MODIFY_AUDIO_SETTINGS) are exported without protection
The device is affected if it runs Android 10.0 and has the SoundRecorder app with components that lack proper permission checks for audio recording access.
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 dataImplement proper permission checks in the SoundRecorder service to verify user authorization before allowing access to recording data or functionality.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-40639 — 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-2023-40639 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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