CVE-2026-20533
Received Received - Intake

Integer Overflow Leading to Privilege Escalation in MediaTek Display

Vulnerability report for CVE-2026-20533, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-05

Last updated on: 2026-10-05

Assigner: MediaTek, Inc.

Description

In display, there is a possible escalation of privilege due to an integer overflow. 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: ALPS11296678; Issue ID: MSV-9167.

CVSS Scores

EPSS Scores

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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
EUVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

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Executive Summary

This vulnerability is an integer overflow in the display component that could allow an attacker with System privilege to escalate privileges further. Exploitation does not require user interaction.

Impact Analysis

If you are a user with System privilege access, an attacker could exploit this to gain higher privileges, potentially leading to full system compromise or unauthorized actions.

Mitigation Strategies

Apply the patch identified as ALPS11296678 to address the integer overflow issue in the display component. Ensure the System privilege is not granted to untrusted actors to prevent potential escalation of privilege.

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EPSS Chart