What is the CVSS score of CVE-2021-20586?

CVE-2021-20586 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 2.7%.

Rv2Fr Firmware CVE-2021-20586

HIGH

2021-01-29 Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp

Information Disclosure Rv2Fr Firmware Rv2Frl Firmware Rv4Fr Firmware Rv4Frl Firmware Rv7Fr Firmware Rv7Frl Firmware Rv7Frll Firmware Rv13Fr Firmware Rv13Frl Firmware Rv20Fr Firmware Rh1Frhr Firmware Rh3Frhr Firmware Rh3Frh35 Firmware Rh3Frh45 Firmware Rh3Frh55 Firmware Rh6Frh35 Firmware Rh6Frh45 Firmware Rh6Frh55 Firmware Rh12Frh55 Firmware Rh12Rfh70 Firmware Rh12Frh85 Firmware Rh20Frh85 Firmware Rh20Frh100 Firmware Rv2Fr B Firmware Rv2Frl B Firmware Rv4Frm C Firmware Rv4Frlm C Firmware Rv7Frm C Firmware Rv7Frlm C Firmware Rv7Frllm C Firmware Rv13Frm C Firmware Rv13Frlm C Firmware Rv20Frm C Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Jan 29, 2021 - 15:15 nvd

HIGH 7.5

DescriptionNVD

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.

AnalysisAI

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,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.