CVE-2026-20559
Received Received - Intake

Memory Corruption in GPU PDMA Driver

Vulnerability report for CVE-2026-20559, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: MediaTek, Inc.

Description

In GPU pdma, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11365081; Issue ID: MSV-9545.

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Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-02
AI Q&A
2026-11-02
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 2 associated CPEs

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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Executive Summary

This vulnerability is a memory corruption issue in GPU pdma caused by a use-after-free condition. It allows local privilege escalation with user execution privileges required but no user interaction needed for exploitation.

Impact Analysis

An attacker could exploit this to gain elevated privileges on a device using a MediaTek chipset, potentially allowing them to execute arbitrary code or take control of the system.

Mitigation Strategies

Apply the patch provided by MediaTek (Patch ID: ALPS11365081) to address the use-after-free issue in GPU pdma. Ensure your system is updated to the latest firmware or software version that includes this fix.

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