CVE:CVE-2022-46402
CNNVD:CNNVD-202212-3576
Microchip RN4870是美国微芯科技（Microchip）公司的一个蓝牙低能耗模块芯片。
Microchip RN4870 模块固件 1.43版本存在安全漏洞，该漏洞源于接受具有错误值的 PairCon_rmSend，攻击者利用该漏洞可以对设备进行拒绝服务。
solution:Upgrade microchip bm78_firmware to a higher version than 1.43,and avoid the version 1.43; Upgrade microchip bm83_firmware to a higher version than 1.43,and avoid the version 1.43; Upgrade microchip rn4870_firmware to a higher version than 1.43,and avoid the version 1.43; Upgrade microchip rn4871_firmware to a higher version than 1.43,and avoid the version 1.43; Upgrade microchip bm70_firmware to a higher version than 1.43,and avoid the version 1.43; Upgrade microchip bm71_firmware to a higher version than 1.43,and avoid the version 1.43; Upgrade microchip pic_lightblue_explorer_demo_firmware to a higher version than 4.2_dt100112,and avoid the version 4.2_dt100112; Upgrade microchip is1870_firmware to a higher version than 1.43,and avoid the version 1.43; Upgrade microchip is1871_firmware to a higher version than 1.43,and avoid the version 1.43