CVE-2026-20583
Received Received - Intake

USB Use After Free Leads to Local DoS

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: ALPS11411916; Issue ID: MSV-9747.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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
CVE-2026-20583

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a use-after-free issue in the USB subsystem that could cause a system crash. It may lead to a local denial of service if an attacker already has System privileges. Exploitation does not require user interaction.

Impact Analysis

If exploited, this vulnerability could crash your device, making it unresponsive. An attacker with System privileges could trigger this issue to cause a denial of service, disrupting normal operations.

Mitigation Strategies

Apply the patch provided by MediaTek with Patch ID ALPS11411916 to address the use-after-free vulnerability in the USB component. Ensure the patch is applied to all affected MediaTek chipsets.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-20583. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...