Out of Bounds Write Vulnerability in MediaTek WLAN AP Driver
CVE-2025-20713

7.8HIGH

Key Information:

Vendor

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

What is CVE-2025-20713?

The MediaTek WLAN AP driver suffers from an out of bounds write vulnerability due to an inadequate bounds check. This flaw enables a malicious actor with existing System privileges to escalate their privileges without requiring user interaction. The issue can allow unauthorized access to sensitive system areas, potentially leading to further exploits or control over the device. A patch addressing this vulnerability has been released, identified as Patch ID WCNCR00432661.

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Affected Version(s)

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

References

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

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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