CVE-2021-20599

Authorization bypass through user-controlled key vulnerability in MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU all versions and MELSEC iQ-R series SIL2 Process CPU R08/16/32/120PSFCPU all versions allows an remote unauthenticated attacker to login to a target CPU module by obtaining credentials other than password.

Date published : 2021-10-14

https://jvn.jp/vu/JVNVU98578731

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-011_en.pdf