CVE-2026-20536
Received Received - Intake

Memory Corruption in AIDL Due to Use After Free

Publication date: 2026-10-05

Last updated on: 2026-10-05

Assigner: MediaTek, Inc.

Description
In aidl, there is a possible memory corruption due to use after free. 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: ALPS11242428; Issue ID: MSV-9038.

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Meta Information

Published
2026-10-05
Last Modified
2026-10-05
Generated
2026-10-05
AI Q&A
2026-10-05
EPSS Evaluated
N/A
NVD
CVE-2026-20536
EUVD
EUVD-2026-92187

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mediatek aidl to ALPS11242428 (inc)

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

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Executive Summary

This vulnerability is a memory corruption issue in aidl (Android Interface Definition Language) caused by a use-after-free condition. This means a program tries to access memory that has already been freed, potentially leading to crashes or unintended behavior. The issue allows local privilege escalation if an attacker already has System-level access.

Impact Analysis

If exploited, this vulnerability could allow an attacker with existing System privileges to further escalate their access, potentially gaining control over the device or executing arbitrary code. However, user interaction is not required for exploitation, and the attacker must already have high-level access.

Mitigation Strategies

Apply the patch provided by MediaTek with Patch ID ALPS11242428 to address the use-after-free issue in aidl. Ensure the patch is applied to all affected systems to prevent local privilege escalation.

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