CVE-2026-20580
Received Received - Intake

USB System Crash Due to Use After Free

Vulnerability report for CVE-2026-20580, 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 usb, there is a possible system crash due to use after free. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11412004; Issue ID: MSV-9752.

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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

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 use-after-free issue in the USB component of MediaTek chipsets. It allows a malicious actor with System privileges to cause a system crash, leading to a local denial of service. The exploit does not require user interaction.

Impact Analysis

If exploited, this vulnerability could crash your device, making it unresponsive. Since it requires System privileges, an attacker would need to already have significant access to your system.

Mitigation Strategies

Apply the patch identified as ALPS11412004 to address the use-after-free vulnerability in the USB component. Ensure the patch is applied to all affected MediaTek chipsets.

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