CVE-2019-19196
Estado: ModificadaMedia (6.5)—
The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices accepts a pairing request with a key size greater than 16 bytes, allowing an attacker in radio range to cause a buffer overflow and denial of service (crash) via crafted packets.
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: 1.36%
- Percentil entre todas las CVEs puntuadas: 71
- Fecha de la puntuación: 7/10/2026
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).
Tecnologías afectadas (5)
CWE
- CWE-120
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2019-19196",
"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": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2020-02-12T15:15:12.147",
"references": [
{
"url": "http://www.telink-semi.com/ble",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://asset-group.github.io/disclosures/sweyntooth/",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.telink-semi.com/ble",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://asset-group.github.io/disclosures/sweyntooth/",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-120"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices accepts a pairing request with a key size greater than 16 bytes, allowing an attacker in radio range to cause a buffer overflow and denial of service (crash) via crafted packets."
},
{
"lang": "es",
"value": "La implementación del Secure Manager Protocol (SMP) de Bluetooth Low Energy en Telink Semiconductor BLE SDK versiones anteriores a noviembre de 2019 para los dispositivos TLSR8x5x versiones hasta 3.4.0, TLSR823x versiones hasta 1.3.0 y TLSR826x versiones hasta 3.3, acepta una petición de emparejamiento con un tamaño de clave superior a 16 bytes , permitiendo a un atacante dentro del radio de alcance causar un desbordamiento del búfer y una denegación de servicio (bloqueo) por medio de paquetes diseñados."
}
],
"lastModified": "2026-06-17T02:26:16.163",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C4C1D7B5-99AD-406C-9849-180044D07053",
"versionEndIncluding": "3.4.0"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "803BCF1A-2DE5-41E0-9C9A-BD557DF2E432"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AEE18168-F273-43D1-A215-BBE3522BDDA0",
"versionEndIncluding": "3.3"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E19FBD81-0731-45DC-800E-B9DDC91FAEDC"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1891E0AC-EB59-48B7-8151-371BE0D9CB73",
"versionEndIncluding": "3.4.0"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "34D5D890-AD2C-4199-A433-7DF20B2F150D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "414AEE52-3787-4340-A4D6-BA9AD2C2AB87",
"versionEndIncluding": "3.4.0"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EA98E09B-A6BC-41FD-BD8D-091E29941F16"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0F4D5A15-6B0E-45D3-8802-0FB3120406ED",
"versionEndIncluding": "1.3.0"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "28482975-1D68-4325-825B-7B597CE1E109"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}