CVE-2021-20600

medium

Description

Uncontrolled resource consumption in Mitsubishi Electric MELSEC iQ-R series C Controller Module R12CCPU-V Firmware Versions "16" and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending a large number of packets in a short time while the module starting up. System reset is required for recovery.

References

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-015_en.pdf

https://us-cert.cisa.gov/ics/advisories/icsa-21-280-04

https://jvn.jp/vu/JVNVU94914666/index.html

Details

Source: Mitre, NVD

Published: 2021-10-08

Updated: 2023-05-16

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: Medium