Local privilege escalation via unchecked APU bounds
Published Mar 7, 2023 · Updated Mar 5, 2025
Improper input validation in the APU on affected MediaTek chipsets with Android 12.0 or 13.0 allows local users to elevate privileges. The APU component omits a bounds check before performing the affected write, allowing an out-of-bounds write; MediaTek has not disclosed a more specific function or input path. Exploitation requires existing System execution privileges but no user interaction, and successful exploitation elevates privileges locally.
Summary
What happened
Improper input validation in the APU on affected MediaTek chipsets with Android 12.0 or 13.0 allows local users to elevate privileges. The APU component omits a bounds check before performing the affected write, allowing an out-of-bounds write; MediaTek has not disclosed a more specific function or input path. Exploitation requires existing System execution privileges but no user interaction, and successful exploitation elevates privileges locally.
The record
- CVE
- CVE-2023-20650
- Published
- Mar 7, 2023
- Updated
- Mar 5, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-20, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Mar 7, 2023CVE publishedPublication date reported by the CVE source.
- Mar 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Public exploit references
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Technologies
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Your stack
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