Cyber Resilience

CVE-2023-4562

Critical

Published: 13 October 2023

Published
13 October 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0023 46.2th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-4562 is a critical-severity Improper Authentication (CWE-287) vulnerability in Mitsubishielectric Fx3G-14 Mr\/Ds Firmware. Its CVSS base score is 9.1 (Critical).

Operationally, ranked at the 46.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Improper Authentication vulnerability in Mitsubishi Electric Corporation MELSEC-F Series main modules allows a remote unauthenticated attacker to obtain sequence programs from the product or write malicious sequence programs or improper data in the product without authentication by sending illegitimate messages.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mitsubishielectric
fx3g-14 mr\/ds firmware
all versions
mitsubishielectric
fx3g-14 mr\/es firmware
all versions
mitsubishielectric
fx3g-14 mt\/ds firmware
all versions
mitsubishielectric
fx3g-14 mt\/dss firmware
all versions
mitsubishielectric
fx3g-14 mt\/es firmware
all versions
mitsubishielectric
fx3g-14 mt\/ess firmware
all versions
mitsubishielectric
fx3g-14mr\/ds firmware
all versions
mitsubishielectric
fx3g-14mr\/es firmware
all versions
mitsubishielectric
fx3g-14mr\/es-a firmware
all versions
mitsubishielectric
fx3g-14mt\/ds firmware
all versions
+180 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-287

Detects unauthorized successful logons resulting from improper authentication implementations.

addresses: CWE-287

Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.

addresses: CWE-287

Security awareness training instructs users on secure authentication practices and avoiding credential compromise.

addresses: CWE-287

Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.

addresses: CWE-287

Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.

addresses: CWE-287

Session content review can reveal authentication bypasses or failures in session establishment.

addresses: CWE-287

Review of authentication-related audit records can detect improper authentication mechanisms or bypasses.

addresses: CWE-287

Assessments check authentication mechanisms for correct implementation and effectiveness, reducing successful authentication bypass attempts.

References