CVE-2021-20612

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 14-01-2022 09:15

Last modified: - 21-01-2022 07:11

Total changes: - 2

Description

Lack of administrator control over security vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.14 and prior, FX3U-ENET-L Firmware version 1.14 and prior and FX3U-ENET-P502 Firmware version 1.14 and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in communication function of the product or other unspecified effects by sending specially crafted packets to an unnecessary opening of TCP port. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Network

Attack vector

High

Availability

None

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.5

Base score

3.9

3.6

Exploitability score

Impact score

Verification logic

AND

vendor=mitsubishielectric AND product=fx3u-enet_firmware AND versionEndIncluding=1.14

vendor=mitsubishielectric AND product=fx3u-enet AND version=-

AND

vendor=mitsubishielectric AND product=fx3u-enet-l_firmware AND versionEndIncluding=1.14

vendor=mitsubishielectric AND product=fx3u-enet-l AND version=-

AND

vendor=mitsubishielectric AND product=fx3u-enet-p502_firmware AND versionEndIncluding=1.14

vendor=mitsubishielectric AND product=fx3u-enet-p502 AND version=-

Reference

Keywords

CVE-2021-20612

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-20612

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures