CVE-2026-20529 - Vulnerability Details - OpenCVE

In battery, there is a possible out of bounds write due to a missing bounds check. 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: ALPS11276677; Issue ID: MSV-9217.

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.

Vendors	Products
Mediatek, Inc. Subscribe	Mediatek Chipset Subscribe

No data.

No data.

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

Vendors	Products
Mediatek, Inc. Subscribe	Mediatek Chipset Subscribe

Advisories

No advisories yet.

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 08:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mediatek, Inc. Mediatek, Inc. mediatek Chipset
Vendors & Products		Mediatek, Inc. Mediatek, Inc. mediatek Chipset

Mon, 05 Oct 2026 03:45:00 +0000

Type	Values Removed	Values Added
Title		Out‑of‑Bounds Write in MediaTek Battery Firmware Enables Local Privilege Escalation

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

Type	Values Removed	Values Added
Description		In battery, there is a possible out of bounds write due to a missing bounds check. 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: ALPS11276677; Issue ID: MSV-9217.
Weaknesses		CWE-787
References		https://www.mediatek.com/product-security-bulletin/October-2026

Projects

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MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-10-05T01:40:05.493Z

Updated: 2026-10-05T01:40:05.493Z

Reserved: 2025-11-03T01:30:59.034Z

Link: CVE-2026-20529

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-10-05T02:16:51.640

Modified: 2026-10-05T02:16:51.640

Link: CVE-2026-20529

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-10-05T08:15:06Z

Weaknesses

CWE-787

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