What is the CVSS score of EUVD-2025-21089?

EUVD-2025-21089 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.1%.

How to fix or mitigate EUVD-2025-21089?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Mitsubishi Electric Corporation MELSEC EUVD-2025-21089

| CVE-2025-5241 MEDIUM

Overly Restrictive Account Lockout Mechanism (CWE-645)

2025-07-11 Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp

Information Disclosure

5.3

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-645 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V6 - Authentication Overly restrictive account lockout
Impact	CVSS 5.3. EPSS 0.1%. No patch confirmed.
Exploit ScenarioDerived	An attacker could exploit this vulnerability in the affected application to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

CVE-2025-5241 is a security vulnerability (CVSS 5.3) that allows a remote unauthenticated attacker. Remediation should follow standard vulnerability management procedures.

Earlier versions of this analysis (1)

v1 Mar 16, 2026 - 08:17 CVSS 5.3

RemediationAI

Monitor vendor channels for patch availability.

Affected VersionsENISA

MELSEC iQ-F Series FX5UJ-60MT/ESS All versions

MELSEC iQ-F Series FX5UJ-24MT/ES All versions

MELSEC iQ-F Series FX5U-64MT/ES All versions

MELSEC iQ-F Series FX5UJ-60MT/DS All versions

MELSEC iQ-F Series FX5UJ-24MT/DS All versions

MELSEC iQ-F Series FX5S-80MT/ES All versions

MELSEC iQ-F Series FX5U-80MT/DSS All versions

MELSEC iQ-F Series FX5S-30MT/ESS All versions

MELSEC iQ-F Series FX5U-80MR/DS All versions

MELSEC iQ-F Series FX5UC-96MT/DSS All versions

MELSEC iQ-F Series FX5UJ-60MR/DS All versions

MELSEC iQ-F Series FX5UJ-24MT/ES-A All versions

MELSEC iQ-F Series FX5U-80MT/ES All versions

MELSEC iQ-F Series FX5-CCLGN-MS All versions

MELSEC iQ-F Series FX5UJ-40MR/ES-A All versions

MELSEC iQ-F Series FX5UC-32MT/DSS All versions

MELSEC iQ-F Series FX5U-32MR/ES All versions

MELSEC iQ-F Series FX5U-32MT/ES All versions

MELSEC iQ-F Series FX5UJ-60MT/ES-A All versions

MELSEC iQ-F Series FX5U-64MR/ES All versions

MELSEC iQ-F Series FX5S-60MR/ES All versions

MELSEC iQ-F Series FX5S-30MT/DS All versions

MELSEC iQ-F Series FX5S-30MR/DS All versions

MELSEC iQ-F Series FX5S-40MT/ESS All versions

MELSEC iQ-F Series FX5S-80MR/ES All versions

MELSEC iQ-F Series FX5S-60MR/DS All versions

MELSEC iQ-F Series FX5U-80MT/ESS All versions

MELSEC iQ-F Series FX5S-60MT/DS All versions

MELSEC iQ-F Series FX5UC-64MT/D All versions

MELSEC iQ-F Series FX5UJ-40MT/ES All versions

MELSEC iQ-F Series FX5UJ-60MR/ES All versions

MELSEC iQ-F Series FX5UJ-40MT/ESS All versions

MELSEC iQ-F Series FX5UJ-24MR/ES-A All versions

MELSEC iQ-F Series FX5UC-96MT/D All versions

MELSEC iQ-F Series FX5S-40MR/ES All versions

MELSEC iQ-F Series FX5UJ-24MT/ESS All versions

MELSEC iQ-F Series FX5S-60MT/ESS All versions

MELSEC iQ-F Series FX5UJ-40MT/DSS All versions

MELSEC iQ-F Series FX5U-32MT/DSS All versions

MELSEC iQ-F Series FX5UJ-24MR/DS All versions

MELSEC iQ-F Series FX5U-64MT/DS All versions

MELSEC iQ-F Series FX5S-60MT/ES All versions

MELSEC iQ-F Series FX5UC-64MT/DSS All versions

MELSEC iQ-F Series FX5U-80MT/DS All versions

MELSEC iQ-F Series FX5U-64MT/DSS All versions

MELSEC iQ-F Series FX5S-30MR/ES All versions

MELSEC iQ-F Series FX5UJ-24MT/DSS All versions

MELSEC iQ-F Series FX5UJ-40MR/ES All versions

MELSEC iQ-F Series FX5S-80MT/ESS All versions

MELSEC iQ-F Series FX5UJ-40MT/DS All versions

MELSEC iQ-F Series FX5UC-32MR/DS-TS All versions

MELSEC iQ-F Series FX5UJ-40MT/ES-A All versions

MELSEC iQ-F Series FX5U-64MR/DS All versions

MELSEC iQ-F Series FX5U-64MT/ESS All versions

MELSEC iQ-F Series FX5UC-32MT/DSS-TS All versions

MELSEC iQ-F Series FX5U-80MR/ES All versions

MELSEC iQ-F Series FX5U-32MR/DS All versions

MELSEC iQ-F Series FX5S-30MT/ES All versions

MELSEC iQ-F Series FX5S-40MR/DS All versions

MELSEC iQ-F Series FX5UC-32MT/DS-TS All versions

MELSEC iQ-F Series FX5UJ-60MT/DSS All versions

MELSEC iQ-F Series FX5UJ-40MR/DS All versions

MELSEC iQ-F Series FX5U-32MT/DS All versions

MELSEC iQ-F Series FX5S-40MT/ES All versions

MELSEC iQ-F Series FX5UJ-24MR/ES All versions

MELSEC iQ-F Series FX5S-40MT/DSS All versions

MELSEC iQ-F Series FX5S-30MT/DSS All versions

MELSEC iQ-F Series FX5UJ-60MR/ES-A All versions

MELSEC iQ-F Series FX5S-40MT/DS All versions

MELSEC iQ-F Series FX5UJ-60MT/ES All versions

MELSEC iQ-F Series FX5U-32MT/ESS All versions

MELSEC iQ-F Series FX5S-60MT/DSS All versions

MELSEC iQ-F Series FX5UC-32MT/D All versions

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Vulnerability type not specified by vendor.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

DescriptionCVE.org

Overly Restrictive Account Lockout Mechanism vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series allows a remote unauthenticated attacker to lockout legitimate users for a certain period by repeatedly attempting to login with incorrect passwords. The legitimate users will be unable to login until a certain period has passed after the lockout or until the product is reset.

Executive ViewAI

Why It Matters

CVE-2025-5241 presents moderate security risk rated CVSS 5.3. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 66% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +26

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.