Local privilege escalation via display bounds-check failure
Published Mar 2, 2026 · Updated Mar 2, 2026
An out-of-bounds write in the MediaTek chipset display subcomponent allows local users with System privilege to escalate privileges. The display subcomponent omits a bounds check during an undisclosed operation, permitting a write outside the intended memory buffer and causing memory corruption. Exploitation requires existing System privilege and no user interaction; MediaTek has not disclosed the affected function, input, or final elevated context.
Summary
What happened
An out-of-bounds write in the MediaTek chipset display subcomponent allows local users with System privilege to escalate privileges. The display subcomponent omits a bounds check during an undisclosed operation, permitting a write outside the intended memory buffer and causing memory corruption. Exploitation requires existing System privilege and no user interaction; MediaTek has not disclosed the affected function, input, or final elevated context.
The record
- CVE
- CVE-2026-20444
- Published
- Mar 2, 2026
- Updated
- Mar 2, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Mar 2, 2026CVE publishedPublication date reported by the CVE source.
- Mar 2, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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