CVE-2020-24490
Estado: ModificadaMedia (6.5)—💥 PoC
Improper buffer restrictions in BlueZ may allow an unauthenticated user to potentially enable denial of service via adjacent access. This affects all Linux kernel versions that support BlueZ.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 6.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.22%
- Percentil entre todas las CVEs puntuadas: 82
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
💥 Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub
⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-24490",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 3.3,
"accessVector": "ADJACENT_NETWORK",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 6.5,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.5,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "secure@intel.com",
"affectedData": [
{
"vendor": "n/a",
"product": "BlueZ Advisory",
"versions": [
{
"status": "affected",
"version": "all Linux kernel versions that support BlueZ"
}
]
}
]
}
],
"published": "2021-02-02T22:15:12.150",
"references": [
{
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00435.html",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "secure@intel.com"
},
{
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00435.html",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Improper buffer restrictions in BlueZ may allow an unauthenticated user to potentially enable denial of service via adjacent access. This affects all Linux kernel versions that support BlueZ."
},
{
"lang": "es",
"value": "Unas restricciones de búfer inapropiadas en BlueZ pueden permitir a un usuario no autenticado habilitar potencialmente la denegación de servicio por medio de un acceso adyacente. Esto afecta a todas las versiones del kernel de Linux que admiten BlueZ"
}
],
"lastModified": "2026-06-17T03:05:40.127",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:bluez:bluez:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C5B75318-0A53-466E-B4B7-A8EA188C26F2"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "06AAC075-8124-46CF-A8F0-D9F19B5AD4CD",
"versionEndExcluding": "4.19.137",
"versionStartIncluding": "4.19"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EFD91860-B023-4C95-BED5-8585DF37964C",
"versionEndExcluding": "5.4.56",
"versionStartIncluding": "4.20"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "D7B25FDD-8A33-4D09-B0C1-FD5F2E38F7F5",
"versionEndExcluding": "5.7.13",
"versionStartIncluding": "5.5.0"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "secure@intel.com"
}