CVE-2025-5241 (GCVE-0-2025-5241)
Vulnerability from cvelistv5 – Published: 2025-07-11 00:16 – Updated: 2025-07-11 13:34
VLAI
EPSS
VEX
Title
Denial-of-Service Vulnerability in MELSEC iQ-F Series
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-11 13:33 UTC
CWE
- CWE-645 - Overly Restrictive Account Lockout Mechanism
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.mitsubishielectric.com/psirt/vulnerab… | vendor-advisory |
| https://www.cisa.gov/news-events/ics-advisories/i… | government-resource |
Impacted products
73 products
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The legitimate users will be unable to login until a certain period has passed after the lockout or until the product is reset.\"},{\"lang\":\"es\",\"value\":\"La vulnerabilidad del mecanismo de bloqueo de cuentas excesivamente restrictivo en la serie MELSEC iQ-F de Mitsubishi Electric Corporation permite a un atacante remoto no autenticado bloquear a usuarios leg\u00edtimos durante un periodo determinado al intentar iniciar sesi\u00f3n repetidamente con contrase\u00f1as incorrectas. Los usuarios leg\u00edtimos no podr\u00e1n iniciar sesi\u00f3n hasta que transcurra un periodo determinado tras el bloqueo o hasta que se restablezca el producto.\"}],\"affected\":[{\"source\":\"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp\",\"affectedData\":[{\"vendor\":\"Mitsubishi Electric Corporation\",\"product\":\"MELSEC iQ-F Series FX5U-32MT/ES\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All versions\",\"status\":\"affected\"}]},{\"vendor\":\"Mitsubishi Electric Corporation\",\"product\":\"MELSEC iQ-F Series FX5U-32MT/DS\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All versions\",\"status\":\"affected\"}]},{\"vendor\":\"Mitsubishi Electric Corporation\",\"product\":\"MELSEC iQ-F Series FX5U-32MT/ESS\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All versions\",\"status\":\"affected\"}]},{\"vendor\":\"Mitsubishi Electric Corporation\",\"product\":\"MELSEC iQ-F Series 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"redhat_vex": {
"current_release_date": "2025-07-13T00:39:55+00:00",
"cve": "CVE-2025-5241",
"id": "CVE-2025-5241",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Denial-of-Service Vulnerability in MELSEC iQ-F Series",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-5241.json",
"version": "3"
},
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\"https://www.cisa.gov/news-events/ics-advisories/icsa-25-184-04\", \"tags\": [\"government-resource\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"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.\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-645\", \"description\": \"CWE-645 Overly Restrictive Account Lockout Mechanism\"}]}], \"providerMetadata\": {\"orgId\": \"e0f77b61-78fd-4786-b3fb-1ee347a748ad\", \"shortName\": \"Mitsubishi\", \"dateUpdated\": \"2025-07-11T00:16:43.275Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-5241\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-11T13:34:05.817Z\", \"dateReserved\": \"2025-05-27T03:34:31.761Z\", \"assignerOrgId\": \"e0f77b61-78fd-4786-b3fb-1ee347a748ad\", \"datePublished\": \"2025-07-11T00:16:43.275Z\", \"assignerShortName\": \"Mitsubishi\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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