CVEvulnerability

CVE-2021-20586

7.5 HIGH Published 2021-01-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-01-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C

Description

Resource management errors vulnerability in a robot controller of MELFA FR Series(controller "CR800-*V*D" of RV-*FR***-D-* all versions, controller "CR800-*HD" of RH-*FRH***-D-* all versions, controller "CR800-*HRD" of RH-*FRHR***-D-* all versions, controller "CR800-*V*R with R16RTCPU" of RV-*FR***-R-* all versions, controller "CR800-*HR with R16RTCPU" of RH-*FRH***-R-* all versions, controller "CR800-*HRR with R16RTCPU" of RH-*FRHR***-R-* all versions, controller "CR800-*V*Q with Q172DSRCPU" of RV-*FR***-Q-* all versions, controller "CR800-*HQ with Q172DSRCPU" of RH-*FRH***-Q-* all versions, controller "CR800-*HRQ with Q172DSRCPU" of RH-*FRHR***-Q-* all versions) and a robot controller of MELFA CR Series(controller "CR800-CVD" of RV-8CRL-D-* all versions, controller "CR800-CHD" of RH-*CRH**-D-* all versions) as well as a cooperative robot ASSISTA(controller "CR800-05VD" of RV-5AS-D-* all versions) allows a remote unauthenticated attacker to cause a DoS of the execution of the robot program and the Ethernet communication by sending a large amount of packets in burst over a short period of time. As a result of DoS, an error may occur. A reset is required to recover it if the error occurs.

Affected configurations

• mitsubishielectric rv2fr firmware • mitsubishielectric rv2frl firmware • mitsubishielectric rv4fr firmware • mitsubishielectric rv4frl firmware • mitsubishielectric rv7fr firmware • mitsubishielectric rv7frl firmware • mitsubishielectric rv7frll firmware • mitsubishielectric rv13fr firmware • mitsubishielectric rv13frl firmware • mitsubishielectric rv20fr firmware • mitsubishielectric rh1frhr firmware • mitsubishielectric rh3frhr firmware • mitsubishielectric rh3frh35 firmware • mitsubishielectric rh3frh45 firmware • mitsubishielectric rh3frh55 firmware • mitsubishielectric rh6frh35 firmware • mitsubishielectric rh6frh45 firmware • mitsubishielectric rh6frh55 firmware • mitsubishielectric rh12frh55 firmware • mitsubishielectric rh12rfh70 firmware • mitsubishielectric rh12frh85 firmware • mitsubishielectric rh20frh85 firmware • mitsubishielectric rh20frh100 firmware • mitsubishielectric rv2fr\(b\) firmware • mitsubishielectric rv2frl\(b\) firmware • mitsubishielectric rv4frm\/c firmware • mitsubishielectric rv4frlm\/c firmware • mitsubishielectric rv7frm\/c firmware • mitsubishielectric rv7frlm\/c firmware • mitsubishielectric rv7frllm\/c firmware • mitsubishielectric rv13frm\/c firmware • mitsubishielectric rv13frlm\/c firmware • mitsubishielectric rv20frm\/c firmware

References