CVE-2023-21002
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 getAvailabilityStatus of several Transcode Permission Controllers, there is a possible permission bypass due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-261193935
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 permission bypass vulnerability in Android-13's Transcode Permission Controllers allows local privilege escalation. The getAvailabilityStatus function in multiple Transcode Permission Controllers lacks a proper permission check, enabling an attacker to bypass permission enforcement without user interaction.
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= 13.0CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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 versionGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB shellAffected if The device is running Android 13.0 exactly
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Confirm Android 13 build ID (optional)Run 'getprop ro.build.id' via ADB shell to get the specific build identifierAffected if Build is associated with Android 13.0 release
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Verify Transcode Permission Controllers presenceCheck for presence of Transcode-related permission controller components in /system/framework/ or via 'pm list features' commandAffected if The system implements Transcode Permission Controllers which could be missing the permission check in getAvailabilityStatus
The device is affected if it is running exactly Android 13.0 and contains Transcode Permission Controllers with the vulnerable getAvailabilityStatus function lacking proper permission enforcement.
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.
dbcve · scopedApply the Android security patch level that addresses this vulnerability. This is a framework-level issue requiring a system update from Google/Android OEMs rather than application-level remediation.
Android 13 with January 2023 security patch level or later
- Check your device's current Android version and security patch level in Settings > About Phone > Android version
- Check for system software updates in Settings > System > Software Update
- Install the latest available Android 13 security update (January 2023 or later security patch level)
- Verify the update was successful by confirming the security patch level in About Phone
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing16.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $11,520.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-21002 — 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-2023-21002 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
- No spam, self-promotion, credentials, or personal data