CVE-2026-20521 - Vulnerability Details - OpenCVE

In Video HAL, there is a possible escalation of privilege 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: ALPS11375674; Issue ID: MSV-9571.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.mediatek.com/product-security-bulletin/October-2026

History

Mon, 05 Oct 2026 04:45:00 +0000

Type	Values Removed	Values Added
Title		Video HAL missing bounds check leads to local privilege escalation in MediaTek chipset

Mon, 05 Oct 2026 02:15:00 +0000

Type	Values Removed	Values Added
Description		In Video HAL, there is a possible escalation of privilege 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: ALPS11375674; Issue ID: MSV-9571.
Weaknesses		CWE-121
References		https://www.mediatek.com/product-security-bulletin/October-2026

Projects

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MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-10-05T01:39:48.809Z

Updated: 2026-10-05T01:39:48.809Z

Reserved: 2025-11-03T01:30:59.032Z

Link: CVE-2026-20521

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-10-05T02:16:50.660

Modified: 2026-10-05T02:16:50.660

Link: CVE-2026-20521

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-10-05T04:30:04Z

Weaknesses

CWE-121

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