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Wireless Software Vulnerability Response

Overview

We monitor publicly disclosed cybersecurity vulnerabilities that may affect our wireless products, software frameworks and development tools. When new vulnerabilities are identified, we assess their impact and provide mitigation guidance, software updates, firmware updates and other response information as appropriate.

The advisories listed below document our response to specific vulnerabilities and include information about affected products, potential impact and recommended actions. Select a vulnerability to view detailed response information.

Vulnerability Advisories

Technology	Description	Last Updated	Affected Hardware Families
TCP/IP	Amnesia:33 TCP/IP	June 2026	ATWINC1500, ATWINC1510, ATWINC3400, PIC32MZ-W1 and WFI32, Legacy 6LowPAN
Bluetooth^®	ANSSI Bluetooth Core		ATSAMB11, BM23, BM62, BM64, BM70, BM78, BM83, IS1678, IS2008, IS2010, IS2013, IS2015, IS2020, IS2021, IS2022, IS2023, IS2025, IS2062, IS2064, IS2066B, IS2083, RN41, RN42, RN4678, RN4870
Wi-Fi^®	AirSnitch	June 2026	Our Wi‑Fi devices are not known to be impacted.
Bluetooth	Bluetooth Impersonation Attacks (BIAS)		BM20, BM23, BM62, BM63, BM64, BM77, BM78, BM83, BM90, RN41, RN42, RN4678, RN4677, RN52
Bluetooth	BlueBorne Attack Vector		ATWILC3000 (Linux^®)
Bluetooth	Deviating Behaviors in Bluetooth Low Energy Implementations	October 2023	BM64, BM70, BM71, BM77, BM78, BM83, IS1870, IS1871, RN4678, RN4870, RN4871, PIC32 BZ2
Wi-Fi	Fragmentation and Aggregation Attacks (FragAttacks)	June 2026	ATWILC1000, ATWILC3000, ATWINC1500, ATWINC1510, ATWINC3400, PIC32MZ-W1 and WFI32
Bluetooth	Key Negotiation of Bluetooth (KNOB)		BM20, BM23, BM62, BM64, BM78, BM83, IS1678, IS2008, IS2010, IS2013, IS2015, IS2020, IS2021, IS2022, IS2023, IS2025, IS2062, IS2064, IS2083, RN41, RN42, RN4678, RN52
Wi-Fi	Kr00k	June 2026	Our Wi‑Fi devices are not known to be impacted.
Java	Log4J	January 2022	Our development tools and hardware are not known to be impacted.
MiWi^™	MiWi Software (6.5 and Previous Versions)		Any hardware running MiWi 6.5 or earlier
Bluetooth	Sweyntooth		ATSAMB11, ATWINC3400, BM70, BM71, BM62, BM63, BM64, BM77, BM78, BM83, BTLC1000, IS1677, IS1678, IS1870, IS1871, IS2062, IS2063, IS2064, IS2066, IS2083, RN4020, RN4677, RN4678, RN4870, RN4871
Wi-Fi	Key Reinstallation Attack (KRACK)	June 2026	ATWILC1000, ATWILC3000, ATWINC1500, ATWINC1510, ATWINC3400, PIC32MZ-W1 and WFI32, RNWF02, WINCS02, MRF24WG0Mx, RN171, RN131, RN1723, RN1810

Report a Vulnerability

How to Report Potential Product Vulnerabilities

Our Product Security Incident Response Team (PSIRT) is responsible for receiving and responding to reports of potential security vulnerabilities affecting our products, software, firmware and development tools. When a vulnerability is reported, we review the information, assess the potential impact and determine the appropriate response to help address any identified security concerns.

Learn More About Reporting

Additional Vulnerability Information

The vulnerability advisories listed on this page are based on publicly disclosed vulnerabilities identified and reported by third-party researchers, industry organizations or security agencies.

This page is not intended to be a comprehensive list of all product security vulnerabilities. Information about vulnerabilities identified through our internal security processes is published separately on our Product Security Advisories page.

View Microchip Security Advisories