Out of Bounds Write Vulnerability in MediaTek WLAN AP Driver
CVE-2025-20711

8.8HIGH

Key Information:

Vendor

MediaTek

Vendor
CVE Published:
14 October 2025

What is CVE-2025-20711?

In the WLAN AP driver developed by MediaTek, a vulnerability exists due to improper bounds checking, which may allow attackers in close proximity to perform an out of bounds write. This flaw can facilitate the escalation of privileges without the necessity for additional execution privileges or user interaction. Affected systems require prompt attention to mitigate this risk effectively.

Affected Version(s)

MT6890, MT7916, MT7981, MT7986 SDK release 7.6.7.2 and before / OpenWrt 19.07, 21.02 (MT6890)

References

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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