CVE-2022-40265 - CVE House
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Status published High CVE-2022-40265

Denial of Service (DoS) Vulnerability in MELSEC iQ-R Series Ethernet Interface Module

Vulnerability Description

Improper Input Validation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R Series RJ71EN71 Firmware version "65" and prior and Mitsubishi Electric Corporation MELSEC iQ-R Series R04/08/16/32/120ENCPU Network Part Firmware version "65" and prior allows a remote unauthenticated attacker to cause a Denial of Service condition by sending specially crafted packets. A system reset is required for recovery.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Mitsubishi Electric Corporation

View all reports →

Affected Software

MELSEC iQ-R Series RJ71EN71, MELSEC iQ-R Series R04/08/16/32/120ENCPU
Vulnerable Versions:
Firmware version "65" and prior, Network Part Firmware version "65" and prior

Timeline

Official Publish: November 30th, 2022
Last Modified: April 24th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weaknesses (CWE)

CWE-20

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1213 Data from Information Repositories
Collection
T1565.002 Stored Data Manipulation
Impact