Security breach alert: Indian government issues warning for smartphones, laptops, Wi-Fi routers and TVs running on these processors; here’s what you should do right now

CERT-In warning | Note: This is an AI-generated image.

The Indian Computer Emergency Response Team (CERT-In) has issued a high-severity warning for a wide range of devices powered by MediaTek chips. The advisory (CIVN-2025-0119) highlights critical vulnerabilities that could let attackers gain elevated privileges or disrupt services, affecting smartphones, laptops, smart TVs, tablets, routers, and other smart home devices.
What’s the warning
CERT-In’s advisory warns that successful exploitation could lead to data theft, unauthorised access, or denial-of-service (DoS) conditions. The issues stem from heap overflows, null pointer dereferencing in Bluetooth and Wi-Fi modules, incorrect WLAN authorisation, and uncontrolled recursion in IMS (IP Multimedia Subsystem) services.

Complete List of affected devicesConnectivity and Wi-Fi SoC
MT7902: MediaTek Wi-Fi 6E Wireless LAN Card
MT7921: MediaTek Wi-Fi 6 Chipset
MT7922: MediaTek Wi-Fi 6E Wireless LAN Card (also known as RZ616)
MT7925: MediaTek Filogic 360 (Wi-Fi 7/Bluetooth 5.4 SoC)
MT7927: MediaTek Filogic 380 (Wi-Fi 7 Module)
MT7915: Wi-Fi 6 (11ax) 4T4R Mini PCIe Module
MT7916: MediaTek Filogic 630
MT7981: Dual-core ARM Cortex-A53 based Wi-Fi SoC
MT7986: MediaTek Filogic 830 (Quad-core ARM Cortex-A53)
MT7990: Wi-Fi 7 AP Module chipset
MT7992: Wi-Fi 6E and Bluetooth 5.3 component
MT7993: Part of the Dimensity 9300+ platform for Wi-Fi and Bluetooth

Dimensity and Helio Series Processors
The majority of the remaining model numbers belong to MediaTek's Dimensity (5G-enabled) and Helio (4G-focused) series of smartphone and tablet processors.
MT6739: MediaTek MT6739
MT6761: MediaTek Helio A22
MT6762: MediaTek Helio P22
MT6762D: A variant of the Helio P22
MT6762M: MediaTek Helio A22
MT6763: MediaTek Helio P23
MT6765: MediaTek Helio P35
MT6765T: A variant of the Helio P35
MT6767: MediaTek Helio P50
MT6768: MediaTek Helio P65
MT6769: Base for Helio G70, G80, G85, and G88 series
MT6769T: MediaTek Helio G80
MT6769Z: MediaTek Helio G85
MT6771: MediaTek Helio P60
MT6779: MediaTek Helio P90
MT6781: MediaTek Helio G96
MT6783: Likely a variant within the Helio family
MT6785: Base for MediaTek Helio G90 and G90T
MT6785T: A variant of the Helio G90 series, likely the Helio G90T or G95
MT6785U: MediaTek Helio G95
MT6789: MediaTek Helio G99
MT6813: This model number is associated with the MediaTek Dimensity 1080.
MT6833: MediaTek Dimensity 700
MT6833P: MediaTek Dimensity 6080
MT6835: MediaTek Dimensity 6100+
MT6835T: MediaTek Dimensity 6300
MT6853: MediaTek Dimensity 720
MT6853T: MediaTek Dimensity 800U
MT6855: MediaTek Dimensity 7025
MT6855T: A variant of the Dimensity 7025 series.
MT6873: MediaTek Dimensity 800
MT6875: MediaTek Dimensity 820
MT6875T: A variant within the Dimensity 800 series.
MT6877: MediaTek Dimensity 900
MT6877T: MediaTek Dimensity 920
MT6877TT: A variant of the Dimensity 900 series.
MT6878: MediaTek Dimensity 7300-Ultra
MT6878M: A variant within the Dimensity 7300 series.
MT6879: MediaTek Dimensity 930
MT6880: A variant within the Dimensity 1000 series.
MT6883: MediaTek Dimensity 800
MT6885: MediaTek Dimensity 1000L
MT6886: A variant within the Dimensity series.
MT6889: MediaTek Dimensity 1000+
MT6890: MediaTek T750 (This is a 5G CPE platform, not a smartphone SoC)
MT6891: MediaTek Dimensity 1200
MT6893: MediaTek Dimensity 1200
MT6895: Likely a variant in the high-end Dimensity series.
MT6895I: A variant within the high-end Dimensity series.
MT6896: A variant within the high-end Dimensity series.
MT6897: MediaTek Dimensity 8350
MT6899: MediaTek Dimensity 9000
MT6980: A variant within the high-end Dimensity series.
MT6983: MediaTek Dimensity 9000
MT6983I: A variant of the Dimensity 9000.
MT6985: MediaTek Dimensity 9200
MT6985I: A variant of the Dimensity 9200.
MT6989: MediaTek Dimensity 9200
MT6989T: MediaTek Dimensity 9200+
MT6990: MediaTek T830 (This is a 5G CPE platform)
MT6991: A variant within the high-end Dimensity series.

Automotive and Tablet Processors
MT8666: MediaTek Kompanio 500
MT8667: A variant in the automotive or tablet SoC lineup.
MT8673: A variant in the automotive or tablet SoC lineup.
MT8675: MediaTek Autus I20 (Automotive)
MT8676: A variant in the automotive or tablet SoC lineup.
MT8678: A variant in the automotive or tablet SoC lineup.
MT8765: A variant of the Helio P35 for tablets.
MT8766: MediaTek MT8766
MT8766R: A variant of the MT8766.
MT8768: MediaTek Helio P22T
MT8771: A variant for tablets or other smart devices.
MT8781: A variant of the Helio G99 for tablets.
MT8786: MediaTek Helio G80 for tablets
MT8788: MediaTek MT8788
MT8788E: A variant of the MT8788.
MT8789: MediaTek Helio G99
MT8791: MediaTek Kompanio 1300T
MT8791T: MediaTek Kompanio 1300T
MT8795T: A variant in the Kompanio series.
MT8797: MediaTek Helio X20/X25 for tablets
MT8798: A variant in the Kompanio series.
MT8863: A variant for smart devices.
MT8873: A variant for smart devices.
MT8883: A variant for smart devices.
MT8893: A variant for smart devices.

Who is affected?
All individuals and organisations using smartphones, laptops, TVs, tablets, Wi-Fi routers, or smart devices powered by the above MediaTek chipsets.

What should users do?
CERT-In strongly advises users to install security patches issued by MediaTek. Device makers are expected to push updates based on MediaTek’s June 2025 security bulletin. Until then, users should avoid connecting vulnerable devices to unsecured networks.
CVEs associated:
• CVE-2025-20672
• CVE-2025-20673