Unrated severityNVD Advisory· Published Dec 19, 2022· Updated Apr 17, 2025

CVE-2022-46400

Description

The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) allows attackers to bypass passkey entry in legacy pairing.

Affected products

Microchip/RN4870 module firmwaredescription
Microchip/PIC LightBlue Explorer Demollm-fuzzy
Range: 4.2 DT100112
Microchip/RN4870llm-fuzzy
Range: = 1.43

Patches

Vulnerability mechanics

References

microchip.commitre
www.computer.org/csdl/proceedings-article/sp/2023/933600a521/1He7Yja1AYMmitre
www.computer.org/csdl/proceedings/sp/2023/1He7WWuJExGmitre
www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/deviating-behaviors-in-bluetooth-lemitre

News mentions

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