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

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00109.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
MediaTek, Inc. MediaTek chipset unaffected
Version Status Constraints
MT6761 affected —
MT6765 affected —
MT6768 affected —
MT6781 affected —
MT6853 affected —
MT6858 affected —
MT6881 affected —
MT6893 affected —
MT6989 affected —
MT6991 affected —
MT6993 affected —
MT8171 affected —
MT8186 affected —
MT8188 affected —
MT8189 affected —
MT8196 affected —
MT8766 affected —
MT8768 affected —
MT8775 affected —
MT8781 affected —
MT8788E affected —
MT8791T affected —
MT8792 affected —
MT8796 affected —
MT8799 affected —
MT8883 affected —
MT8893 affected —
MT8910 affected —

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

Project Subscriptions

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 cve-icon cve-icon
History

Mon, 05 Oct 2026 13:30:00 +0000

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

Mon, 05 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-10-05T10:53:46.959Z

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

Link: CVE-2026-20529

cve-icon Vulnrichment

Updated: 2026-10-05T10:29:49.204Z

cve-icon NVD

Status : Received

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

Modified: 2026-10-05T11:16:50.093

Link: CVE-2026-20529

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T13:15:07Z

Weaknesses