CVE-2026-20502
Received Received - Intake

Out of Bounds Write in MediaTek vdec Component

Publication date: 2026-09-07

Last updated on: 2026-09-07

Assigner: MediaTek, Inc.

Description
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11262030; Issue ID: MSV-9196.

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Meta Information

Published
2026-09-07
Last Modified
2026-09-07
Generated
2026-09-07
AI Q&A
2026-09-07
EPSS Evaluated
N/A
NVD
CVE-2026-20502
EUVD
EUVD-2026-72195

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

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Executive Summary

This vulnerability is in the vdec component where a missing bounds check can lead to an out of bounds write. This issue allows local privilege escalation without needing extra execution privileges or user interaction.

Impact Analysis

An attacker could exploit this to gain elevated privileges on your system, potentially allowing them to take control of your device or perform unauthorized actions.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves a possible out of bounds write in vdec, which could lead to local privilege escalation but does not mention data exposure or privacy violations relevant to these regulations.

Mitigation Strategies

Apply the patch provided by MediaTek with Patch ID ALPS11262030 to address the missing bounds check in vdec.

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