Out of Bounds Write Vulnerability in MediaTek WLAN Driver
CVE-2025-20728

7.8HIGH

Key Information:

Vendor

MediaTek
Status
Mt7902, Mt7920, Mt7921, Mt7922, Mt7925, Mt7927
Vendor
CVE Published:
4 November 2025

What is CVE-2025-20728?

A vulnerability has been identified within the MediaTek WLAN STA driver that allows for an out of bounds write due to inadequate bounds checking. This defect permits local escalation of privileges, enabling potential attackers to gain unauthorized access to sensitive system resources. User action is not required to exploit this flaw, presenting a considerable risk. A patch has been made available under the ID WCNCR00447115 to address this issue, urging all users to update their systems promptly.

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Affected Version(s)

MT7902, MT7920, MT7921, MT7922, MT7925, MT7927 NB SDK release 3.7 and before

References

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

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

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