FKIE_CVE-2024-4760
Vulnerability from fkie_nvd - Published: 2024-05-16 13:15 - Updated: 2026-06-17 08:02
Severity
Summary
A voltage glitch during the startup of EEFC NVM controllers on Microchip SAM E70/S70/V70/V71, SAM G55, SAM 4C/4S/4N/4E, and SAM 3S/3N/3U microcontrollers allows access to the memory bus via the debug interface even if the security bit is set.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "affected",
"product": "SAME70",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "affected",
"product": "SAMS70",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "affected",
"product": "SAMV70",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "affected",
"product": "SAMV71",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAMG55",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAM4C",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAM4S",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAM4N",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAM4E",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAM3S",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAM3N",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "SAM3U",
"vendor": "Microchip",
"versions": [
{
"status": "affected",
"version": "0"
}
]
}
],
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5"
},
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:amtel:same70:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "same70",
"vendor": "amtel",
"versions": [
{
"status": "affected",
"version": "*"
}
]
},
{
"cpes": [
"cpe:2.3:a:amtel:sams70:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "sams70",
"vendor": "amtel",
"versions": [
{
"status": "affected",
"version": "*"
}
]
},
{
"cpes": [
"cpe:2.3:a:amtel:samv70:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "samv70",
"vendor": "amtel",
"versions": [
{
"status": "affected",
"version": "*"
}
]
},
{
"cpes": [
"cpe:2.3:a:amtel:samv71:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "samv71",
"vendor": "amtel",
"versions": [
{
"status": "affected",
"version": "*"
}
]
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A voltage glitch during the startup of EEFC NVM controllers on Microchip SAM E70/S70/V70/V71, SAM G55, SAM\u00a04C/4S/4N/4E, and SAM 3S/3N/3U microcontrollers\u00a0allows access to the memory bus via the debug interface even if the security bit is set."
},
{
"lang": "es",
"value": "Una falla de voltaje durante el inicio de los controladores EEFC NVM en los microcontroladores Microchip SAM E70/S70/V70/V71 permite el acceso al bus de memoria a trav\u00e9s de la interfaz de depuraci\u00f3n incluso si el bit de seguridad est\u00e1 configurado."
}
],
"id": "CVE-2024-4760",
"lastModified": "2026-06-17T08:02:50.677",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "PHYSICAL",
"availabilityImpact": "HIGH",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 0.4,
"impactScore": 5.9,
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-4760",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-05-24T19:22:40.820250Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-16T13:15:47.893",
"references": [
{
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"url": "https://ww1.microchip.com/downloads/aemDocuments/documents/MCU32/ProductDocuments/SupportingCollateral/Security-Advisory-CVE-2024-4760.pdf"
},
{
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"url": "https://www.0x01team.com/hw_security/bypassing-microchip-atmel-sam-e70-s70-v70-v71-security/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.0x01team.com/hw_security/bypassing-microchip-atmel-sam-e70-s70-v70-v71-security/"
}
],
"sourceIdentifier": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-1247"
}
],
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"type": "Secondary"
}
]
}
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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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