CVE-2026-20438
Undergoing Analysis Undergoing Analysis - In Progress

Race Condition Out-of-Bounds Write in MAE Enables Privilege Escalation

Vulnerability report for CVE-2026-20438, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-03-02

Last updated on: 2026-03-03

Assigner: MediaTek, Inc.

Description

In MAE, there is a possible out of bounds write due to a race condition. 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: ALPS10431920; Issue ID: MSV-5835.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-03-02
Last Modified
2026-03-03
Generated
2026-07-26
AI Q&A
2026-03-02
EPSS Evaluated
2026-07-25
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google android 15.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-367 The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in MAE and is caused by a race condition that leads to a possible out of bounds write.

It can be exploited without any user interaction if a malicious actor already has System privilege.

The issue could allow local escalation of privilege.

Detection Guidance

I don't know

Impact Analysis

If exploited, this vulnerability could allow an attacker who already has System privilege to escalate their privileges further locally.

This means the attacker could gain higher-level access or control over the affected system.

Compliance Impact

I don't know

Mitigation Strategies

I don't know

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