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.
Published: 2022-01-14
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-8030 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.
History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00405}

epss

{'score': 0.00353}


Subscriptions

Mitsubishielectric Fx3u-enet Fx3u-enet-l Fx3u-enet-l Firmware Fx3u-enet-p502 Fx3u-enet-p502 Firmware Fx3u-enet Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: Mitsubishi

Published:

Updated: 2024-08-03T17:45:44.790Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2021-20612

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-01-14T20:15:09.850

Modified: 2024-11-21T05:46:52.860

Link: CVE-2021-20612

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses