Local privilege escalation via unchecked flashc write
Published Mar 4, 2024 · Updated Aug 1, 2024
Out-of-bounds write in flashc on MediaTek MT8666B with Android 12.0 through 14.0 allows local users to escalate privileges. The flashc component writes beyond a buffer because it fails to validate input bounds; MediaTek has not disclosed the affected function or input. Exploitation requires existing System privilege and no user interaction, and can compromise confidentiality and integrity without interrupting service.
Summary
What happened
Out-of-bounds write in flashc on MediaTek MT8666B with Android 12.0 through 14.0 allows local users to escalate privileges. The flashc component writes beyond a buffer because it fails to validate input bounds; MediaTek has not disclosed the affected function or input. Exploitation requires existing System privilege and no user interaction, and can compromise confidentiality and integrity without interrupting service.
The record
- CVE
- CVE-2024-20024
- Published
- Mar 4, 2024
- Updated
- Aug 1, 2024
- Vendor
- MediaTek
- Product
- MediaTek MT8666B
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Mar 4, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 2024Record 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
- Affected versionversion=android_13.0
- Affected versionversion=android_14.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
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Technologies
Your stack
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Your stack
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