Description Preview
Overview
CVE-2025-20719 is a high-severity vulnerability affecting MediaTek's wireless LAN access point driver. The flaw stems from an improper bounds check, which can result in an out-of-bounds write operation. This vulnerability can be exploited by a remote attacker who is adjacent to the network, requiring no user interaction or special privileges. The potential impact includes a complete compromise of system confidentiality, integrity, and availability. With a CVSS v3.1 base score of 8.8, this vulnerability is classified as high risk. The weakness is categorized as CWE-121, which refers to stack-based buffer overflow issues.
Remediation
As of the current information available, MediaTek has addressed this vulnerability with a patch identified as WCNCR00418955. Users and administrators of systems utilizing MediaTek's wlan AP driver should prioritize applying this patch as soon as it becomes available through their device manufacturer or system provider. In the interim, it is advisable to implement network segmentation and limit access to potentially vulnerable devices to trusted entities only. Regular monitoring of MediaTek's security bulletins and prompt application of security updates is recommended to mitigate this and future vulnerabilities.
References
[1] MediaTek. (2025). Product Security Bulletin October 2025. https://corp.mediatek.com/product-security-bulletin/October-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
