Out of Bounds Write Vulnerability in MediaTek WLAN AP Driver
CVE-2025-20714

7.8HIGH

Key Information:

Vendor

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

What is CVE-2025-20714?

The MediaTek WLAN AP driver is susceptible to an out of bounds write vulnerability stemming from an incorrect bounds check. Successful exploitation requires that an attacker possess System privileges, yet it does not necessitate user interaction. This vulnerability can potentially allow a malicious actor to escalate their privileges within the system, which could lead to further security breaches. Affected users should ensure they apply the available patches promptly to mitigate risks associated with this vulnerability. For more details, visit the MediaTek security bulletin.

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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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