Out of Bounds Write Vulnerability in MediaTek Wlan AP Driver
CVE-2025-20716

7.8HIGH

Key Information:

Vendor

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

What is CVE-2025-20716?

The wlan AP driver from MediaTek has a vulnerability that allows for an out of bounds write due to a flaw in the bounds checking process. This vulnerability could enable a local attacker, who has already gained system privileges, to escalate their privileges further. Notably, no user interaction is required for exploitation, increasing the risk of potential attacks. MediaTek has provided a patch to address this issue under Patch ID: WCNCR00421149.

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

JSON
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CVE-2025-20716 : Out of Bounds Write Vulnerability in MediaTek Wlan AP Driver