Out of Bounds Write Vulnerability in MediaTek Bluetooth Driver
CVE-2025-20680

9.8CRITICAL

Key Information:

Vendor

MediaTek
Status
Mt7902, Mt7920, Mt7921, Mt7922, Mt7925, Mt7927
Vendor
CVE Published:
8 July 2025

What is CVE-2025-20680?

A vulnerability exists in the MediaTek Bluetooth driver due to inadequate bounds checking that could result in an out of bounds write. This issue allows for a potential local escalation of privileges, requiring user execution privileges to be exploited. The vulnerability can be exploited without user interaction, raising concerns for system security. MediaTek has released patch WCNCR00418044 to address this issue, and affected users should ensure they have updated their drivers accordingly.

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Deploy the Patch

Affected Version(s)

MT7902, MT7920, MT7921, MT7922, MT7925, MT7927 NB SDK release 3.6 and before

References

https://corp.mediatek.com/product-security-bulletin/July-...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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