Out of Bounds Read Vulnerability in MediaTek WLAN AP Driver
CVE-2025-20689

5.5MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt6890, Mt7615, Mt7622, Mt7663, Mt7915, Mt7916, Mt7981, Mt7986
Vendor
CVE Published:
8 July 2025

What is CVE-2025-20689?

The MediaTek WLAN AP driver has a vulnerability that allows an out of bounds read due to improper bounds checking. This flaw could facilitate local information disclosure, potentially exposing sensitive data. Although user execution privileges are required for this vulnerability to be exploited, user interaction is not necessary. The issue has been documented under Issue ID: MSV-3479, and a patch has been released to address the vulnerability.

Affected Version(s)

MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 SDK release 7.6.7.2 and before / openWRT 19.07, 21.02

References

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

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
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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CVE-2025-20689 : Out of Bounds Read Vulnerability in MediaTek WLAN AP Driver