Local privilege escalation via unchecked display buffer
Published Jan 6, 2026 · Updated Jan 6, 2026
Out-of-bounds write in MediaTek Display Driver on Android 14 through 16 allows local users with System privilege to elevate privileges. The display component writes beyond a buffer because it processes a value without the required bounds check; MediaTek has not disclosed the specific routine or input. Exploitation is local, requires preexisting System privilege, and needs no user interaction, with memory corruption enabling privilege escalation.
Summary
What happened
Out-of-bounds write in MediaTek Display Driver on Android 14 through 16 allows local users with System privilege to elevate privileges. The display component writes beyond a buffer because it processes a value without the required bounds check; MediaTek has not disclosed the specific routine or input. Exploitation is local, requires preexisting System privilege, and needs no user interaction, with memory corruption enabling privilege escalation.
The record
- CVE
- CVE-2025-20783
- Published
- Jan 6, 2026
- Updated
- Jan 6, 2026
- Vendor
- MediaTek
- Product
- MediaTek Display Driver
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jan 6, 2026CVE publishedPublication date reported by the CVE source.
- Jan 6, 2026Record 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 14.0, 15.0, 16.0
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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