CVE-2026-20463
Received Received - Intake

Privilege Escalation in Modem Due to Permissions Bypass

Publication date: 2026-07-01

Last updated on: 2026-07-01

Assigner: MediaTek, Inc.

Description
In Modem, there is a possible escalation of privilege due to a permissions bypass. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: MOLY01716533; Issue ID: MSV-6309.

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Meta Information

Published
2026-07-01
Last Modified
2026-07-01
Generated
2026-07-01
AI Q&A
2026-07-01
EPSS Evaluated
N/A
NVD
CVE-2026-20463
EUVD
EUVD-2026-40876

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mediatek modem *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-280 The product does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the product in an invalid state.

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Impact Analysis

If exploited, this vulnerability could allow an attacker with existing System privileges to gain even higher privileges on the affected system.

This could lead to unauthorized access or control over sensitive system functions or data.

Executive Summary

This vulnerability exists in the Modem component and involves a possible escalation of privilege due to a permissions bypass.

It allows a malicious actor who already has System privilege to further escalate their privileges locally without requiring any user interaction.

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