CVE-2021-0375
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 onPackageModified of VoiceInteractionManagerService.java, there is a possible change of default applications due to an insecure default value. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-167261484
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 VoiceInteractionManagerService's onPackageModified method, an insecure default value allows modification of default application assignments for voice interactions. This could enable a local attacker to escalate privileges by changing which application handles voice interactions, without requiring any user interaction or additional execution privileges.
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= 11.0CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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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Confirm Android version is exactly 11.0Run 'getprop ro.build.version.release' in a terminal or check Settings > About Phone > Android versionAffected if The version displayed is 11.0 (exact match)
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Check if VoiceInteractionManagerService is accessibleVerify the framework contains the VoiceInteractionManagerService by examining /system/framework/framework.jar or checking logcat for service initialization messages containing 'VoiceInteractionManagerService'Affected if The service is present and running on an unpatched Android 11.0 system
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Verify voice interaction default app settingsCheck Settings > Apps > Default apps > Voice input > Voice interaction provider, or run 'settings get secure voice_interaction_package' via adb shellAffected if A voice interaction package is set as default and could potentially be modified by a local app
A device is affected if it runs Android version 11.0 exactly and contains the vulnerable VoiceInteractionManagerService with an insecure default value in the onPackageModified method.
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 official AOSP patch for Android-11 (Android ID A-167261484) which corrects the insecure default value in VoiceInteractionManagerService.java. Device manufacturers and custom ROM developers should integrate the patched framework code into their builds.
- Consultation2.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-0375 — 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-2021-0375 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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