CVE-2026-20591
Received Received - Intake

Privilege Escalation in GPU PDMA

Vulnerability report for CVE-2026-20591, 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 escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11365075; Issue ID: MSV-9546.

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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 in GPU pdma where a missing permission check could allow local privilege escalation. No extra execution privileges or user interaction are required for exploitation.

Impact Analysis

An attacker could exploit this to gain higher privileges on a device using a MediaTek chipset, potentially allowing unauthorized access or control.

Mitigation Strategies

Apply the patch identified as ALPS11365075 by MediaTek to address the missing permission check in GPU pdma. Ensure the patch is installed on all affected MediaTek chipsets.

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