CVE:CVE-2020-5531
CNNVD:CNNVD-202002-848
Mitsubishi Electric MELSEC Q series是日本三菱电机（Mitsubishi Electric）公司的一款可编程逻辑控制器。
多款Mitsubishi Electric产品存在安全漏洞。远程攻击者可利用该漏洞造成拒绝服务或运行恶意软件。以下产品及版本受到影响：Q24DHCCPU-V User Ethernet port；24DHCCPU-VG User Ethernet port；R12CCPU-V Ethernet port (CH1, CH2)；RD55UP06-V Ethernet port；MI5122-VW Ethernet port (CH1)。
solution:Upgrade mitsubishielectric mi5122-vw_firmware to a higher version than 03,and avoid the version (,03]; Upgrade mitsubishielectric q24dhccpu-v_firmware to a higher version than 21121,and avoid the version (,21121]; Upgrade mitsubishielectric q24dhccpu-vg_firmware to a higher version than 21121,and avoid the version (,21121]; Upgrade mitsubishielectric r12ccpu-v_firmware to a higher version than 11,and avoid the version (,11]; Upgrade mitsubishielectric rd55up06-v_firmware to a higher version than 08,and avoid the version (,08]