In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

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
MT2718 affected —
MT6768 affected —
MT6769 affected —
MT6789 affected —
MT6833 affected —
MT6855 affected —
MT6877 affected —
MT8186 affected —
MT8188 affected —
MT8189 affected —
MT8195 affected —
MT8196 affected —
MT8367 affected —
MT8391 affected —
MT8395 affected —
MT8668 affected —
MT8676 affected —
MT8678 affected —
MT8696 affected —
MT8781 affected —
MT8788E affected —
MT8792 affected —
MT8793 affected —
MT8799 affected —
MT8910 affected —

No data.

No data.

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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 11:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 06:00:00 +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 04:30:00 +0000

Type Values Removed Values Added
Title Vdec Out‑of‑Bounds Write Allows Remote Privilege Escalation on MediaTek Devices

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

Type Values Removed Values Added
Description In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.
Weaknesses CWE-787
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-10-05T10:53:48.543Z

Reserved: 2025-11-03T01:30:59.049Z

Link: CVE-2026-20586

cve-icon Vulnrichment

Updated: 2026-10-05T10:37:22.838Z

cve-icon NVD

Status : Received

Published: 2026-10-05T02:16:53.803

Modified: 2026-10-05T11:16:52.610

Link: CVE-2026-20586

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T05:45:16Z

Weaknesses