CVE-2023-42716
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 telephony service, there is a possible missing permission check. This could lead to remote information disclosure 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 confidenceThis vulnerability involves a missing permission check in the telephony service that allows remote information disclosure without requiring additional execution privileges. An attacker could potentially access sensitive telephony data such as call logs, phone numbers, or subscriber information by exploiting the unprotected service endpoint.
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= 11.0= 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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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Check Android versionRun 'getprop ro.build.version.release' or check Settings > About Phone > Android versionAffected if Version is exactly 11.0 or 12.0
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Identify telephony serviceList running services with 'dumpsys' or check for com.android.phone or telephony-related services in process listAffected if Telephony service (com.android.phone or similar) is running and exposed
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Verify permission enforcement on telephony endpointAttempt to query telephony data through the service interface without holding READ_PHONE_STATE or READ_CALL_LOG permissions, or inspect service manifest for missing permission requirementsAffected if The telephony service endpoint accepts requests without verifying caller holds required permissions (READ_PHONE_STATE, READ_CALL_LOG)
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Check service configurationReview telephony service configuration files or manifest for permission protection level settingsAffected if The service declares no permission requirement or has 'protectionLevel=normal' or 'protectionLevel=signature' instead of 'dangerous' for sensitive APIs
A device is affected if it runs Android 11.0 or 12.0 and the telephony service endpoint is accessible without proper permission validation checks being enforced.
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 validation checks in the telephony service code paths to ensure only authorized callers can access sensitive information. Apply Android permission model enforcement (e.g., READ_PHONE_STATE, READ_CALL_LOG) before returning any telephony data.
- Consultation2.0 h
- Implementation4.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-42716 — 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-2023-42716 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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