CVE-2023-1618 - CVE House
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Status published High CVE-2023-1618

Authentication Bypass Vulnerability in MELSEC WS Series Ethernet Interface Module

Vulnerability Description

Active Debug Code vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 Serial number 2310 **** and prior allows a remote unauthenticated attacker to bypass authentication and illegally log into the affected module by connecting to it via telnet which is hidden function and is enabled by default when shipped from the factory. As a result, a remote attacker with unauthorized login can reset the module, and if certain conditions are met, he/she can disclose or tamper with the module's configuration or rewrite the firmware.

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 WS Series WS0-GETH00200
Vulnerable Versions:
Serial number 2310 **** and prior

Timeline

Official Publish: May 19th, 2023
Last Modified: February 12th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

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

Weaknesses (CWE)

CWE-489

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.