Out of Bounds Write Vulnerability in Mediatek WLAN AP Driver
CVE-2025-20737

7.8HIGH

Key Information:

Vendor

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

What is CVE-2025-20737?

A potential out of bounds write vulnerability exists in the Mediatek WLAN AP driver due to an insufficient bounds check. This issue may allow for local privilege escalation, requiring user execution privileges to be exploited. User interaction is not necessary for the attack to occur. Addressing this vulnerability is critical to maintaining the integrity and security of systems utilizing the affected driver.

Affected Version(s)

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

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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