Local privilege escalation via unchecked DPE write
Published Aug 7, 2023 · Updated Oct 15, 2024
An out-of-bounds write in MediaTek DPE on affected Android 12.0 and 13.0 chipsets allows local users to elevate privileges. DPE fails to check an input bound before writing beyond its destination buffer. Exploitation requires existing System execution privileges and no user interaction; successful abuse yields local privilege escalation.
Summary
What happened
An out-of-bounds write in MediaTek DPE on affected Android 12.0 and 13.0 chipsets allows local users to elevate privileges. DPE fails to check an input bound before writing beyond its destination buffer. Exploitation requires existing System execution privileges and no user interaction; successful abuse yields local privilege escalation.
The record
- CVE
- CVE-2023-20807
- Published
- Aug 7, 2023
- Updated
- Oct 15, 2024
- Vendor
- MediaTek
- Product
- MT8195
- Classifications
- CWE-787, CWE-20, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 7, 2023CVE publishedPublication date reported by the CVE source.
- Oct 15, 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
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.
Weakness, pattern, technique
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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