CVE-2021-20613

high

Description

Improper initialization vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.16 and prior, FX3U-ENET-L Firmware version 1.16 and prior and FX3U-ENET-P502 Firmware version 1.16 and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in communication function of the product by sending specially crafted packets. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.

References

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-024_en.pdf

https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-07

https://jvn.jp/vu/JVNVU93268332/index.html

Details

Source: Mitre, NVD

Published: 2022-01-14

Updated: 2022-01-21

Risk Information

CVSS v2

Base Score: 7.8

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

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High