CVE-2022-20434
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 · uneditedThere is an missing authorization issue in the system service. Since the component does not have permission check , resulting in Local Elevation of privilege.Product: AndroidVersions: Android SoCAndroid ID: A-242244028
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 confidenceThis is a local privilege escalation vulnerability in Android SoC system services where a component lacks proper permission checks. An attacker with local device access could potentially bypass authorization to execute privileged operations they should not have access to.
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
- 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 security patch levelGo to Settings > About Phone > Security Patch Level or run 'adb shell getprop ro.build.version.security_patch'Affected if The security patch level is earlier than November 2022 (2022-11-01) or not displayed, indicating the vulnerability is unpatched
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Verify system service permissionsUse 'adb shell dumpsys' to list system services and check their permission configurations. Focus on SoC-related services by examining 'adb shell service list' and reviewing permission declarations in service definitionsAffected if A system service lacks proper permission checks in its manifest or code, allowing unauthorized privileged operations
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Check for unauthorized privileged accessReview system logs with 'adb shell logcat' for suspicious service calls or examine running processes with elevated privileges using 'adb shell ps -A | grep -E "root|system"'Affected if Untrusted processes or users are able to execute operations that should require elevated system privileges
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Identify SoC system service componentsExamine the Android Framework for services registered in system_server by running 'adb shell dumpsys activity services' and reviewing SoC-specific service implementations in /system or vendor partitionsAffected if A SoC system service component is present without proper permission enforcement for sensitive operations
The device is affected if it lacks the November 2022 Android security patch or if a system service component in the SoC is accessible without proper authorization checks.
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-provided security patch for Android that includes proper authorization/permission validation in the affected system service component.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 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 $3,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-20434 — 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-2022-20434 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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