Bluetooth Driver Permission Bypass in MediaTek Products
CVE-2026-20495

7.8HIGH

Key Information:

Vendor

MediaTek
Status
Mediatek Chipset
Vendor
CVE Published:
3 August 2026

What is CVE-2026-20495?

A vulnerability has been identified in the Bluetooth driver of MediaTek products that allows for a potential permission bypass. This issue stems from a missing check on permissions, enabling local escalation of privilege using only user execution privileges. Notably, exploitation does not require any user interaction, which raises significant security concerns for affected systems. Users are prompted to apply the necessary patches to mitigate this risk.

Affected Version(s)

MediaTek chipset MT7902

MediaTek chipset MT7920

MediaTek chipset MT7921

References

https://www.mediatek.com/product-security-bulletin/August...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.