Description Preview
Overview
The vulnerability (CVE-2025-20729) affects the WLAN AP driver in MediaTek devices. It is characterized by an out-of-bounds write vulnerability resulting from an improper bounds check. This flaw could be exploited by an attacker who has already obtained System privileges to further escalate their privileges on the affected device. The vulnerability does not require user interaction for exploitation, making it particularly concerning. The issue has been assigned the internal tracking number MSV-4153 by MediaTek.
From a technical standpoint, the vulnerability is classified as CWE-122, which refers to a heap-based buffer overflow. This type of vulnerability can lead to corruption of data, crashes, or code execution. The CVSS v3.1 score of 4.2 indicates a medium severity, with the attack vector being local, attack complexity low, and privileges required being high. The potential impact on confidentiality, integrity, and availability is assessed as low.
Remediation
MediaTek has addressed this vulnerability with a patch identified as WCNCR00441512. Users and administrators of affected MediaTek devices should apply this patch as soon as it becomes available through their device manufacturer or service provider. It is crucial to keep all MediaTek-based devices updated with the latest security patches to mitigate this and other potential vulnerabilities.
In addition to applying the patch, it is recommended to implement the principle of least privilege, ensuring that users and processes operate with the minimum level of access necessary. This can help limit the potential impact of similar vulnerabilities in the future.
References
[1] MediaTek. (2025, November). Product Security Bulletin - November 2025. https://corp.mediatek.com/product-security-bulletin/November-2025
Industry ExposureMost to leastThis section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.
- Accommodation & Food ServicesAccommodation & Food Services: Low
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services: Low
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting: Low
- Arts, Entertainment & RecreationArts, Entertainment & Recreation: Low
- ConstructionConstruction: Low
- Educational ServicesEducational Services: Low
- Finance and InsuranceFinance and Insurance: Low
- Health Care & Social AssistanceHealth Care & Social Assistance: Low
- InformationInformation: Low
- Management of Companies & EnterprisesManagement of Companies & Enterprises: Low
- ManufacturingManufacturing: Low
- MiningMining: Low
- Other Services (except Public Administration)Other Services (except Public Administration): Low
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services: Low
- Public AdministrationPublic Administration: Low
- Real Estate Rental & LeasingReal Estate Rental & Leasing: Low
- Retail TradeRetail Trade: Low
- Transportation & WarehousingTransportation & Warehousing: Low
- UtilitiesUtilities: Low
- Wholesale TradeWholesale Trade: Low
