CVE-2023-0457

Information Disclosure Vulnerability in MELSEC Series

HIGH
7.5
CVSS Score
Published: March 3, 2023 at 04:18 AM UTC
Updated: June 17, 2026 at 05:25 AM UTC
185 products affected across 1 vendorFX5UC 32MR /ds Ts FirmwareFX5UC 32MT /dss FirmwareFX5UJ 24MT /es Firmware

Using MELSEC iQ-F Series FX5U-32MT/ES by Mitsubishi Electric Corporation?

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Plaintext Storage of a Password vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series, MELSEC iQ-R Series, MELSEC-Q Series and MELSEC-L Series allows a remote unauthenticated attacker to disclose plaintext credentials stored in project files and login into FTP server or Web server.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
mitsubishielectric-fx5-enet (same device)
All versions
mitsubishielectric-fx5-enet-ip (same device)
All versions
mitsubishielectric-fx5s-30mr-es (same device)
All versions
mitsubishielectric-fx5s-30mt-es (same device)
All versions
mitsubishielectric-fx5s-30mt-ess (same device)
All versions
mitsubishielectric-fx5s-40mr-es (same device)
All versions
mitsubishielectric-fx5s-40mt-es (same device)
All versions
mitsubishielectric-fx5s-40mt-ess (same device)
All versions
mitsubishielectric-fx5s-60mr-es (same device)
All versions
mitsubishielectric-fx5s-60mt-es (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHMitsubishi
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-256CWE-522

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