Local privilege escalation via telephony permissions bypass
Published Feb 5, 2024 · Updated Dec 16, 2025
Missing authorization in MediaTek chipset telephony on Android 12.0 through 14.0 allows local users to escalate privileges without interaction. The component bypasses a required permission check, but MediaTek has not disclosed the affected interface, function, or privileged operation. Exploitation requires local code execution, needs no additional execution privileges, and grants higher local privileges.
Summary
What happened
Missing authorization in MediaTek chipset telephony on Android 12.0 through 14.0 allows local users to escalate privileges without interaction. The component bypasses a required permission check, but MediaTek has not disclosed the affected interface, function, or privileged operation. Exploitation requires local code execution, needs no additional execution privileges, and grants higher local privileges.
The record
- CVE
- CVE-2024-20015
- Published
- Feb 5, 2024
- Updated
- Dec 16, 2025
- Vendor
- MediaTek
- Product
- MT8667
- Classifications
- CWE-862, T1404
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 5, 2024CVE publishedPublication date reported by the CVE source.
- Dec 16, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=android_12.0 <=android_14.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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