CVE-2018-20394
Estado: ModificadaCrítica (9.8)—
Gravedad9.8Crítica · CVSS 3.0
Probabilidad de explotación1.51 %mayor que el 74 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
Los dispositivos Thomson DWG849 STC0.01.16, DWG850-4 ST9C.05.25, DWG855 ST80.20.26 y TWG870 STB2.01.36 permiten que atacantes remotos descubran credenciales mediante peticiones SNMP iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 e iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0.
CVSS
- Puntuación base
- 9.8
- Versión
- 3.0
- Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 1.51 %
- Percentil entre todas las CVEs puntuadas
- 74
- Fecha de la puntuación
- 24/10/2026
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 (4)
CWE
- CWE-522
Referencias
Mostrar las 4 referencias
- https://github.com/ezelf/sensitivesOids/blob/master/oidpassswordleaks.csv
- https://misteralfa-hack.blogspot.com/2018/12/stringbleed-y-ahora-que-passwords-leaks.html
- https://github.com/ezelf/sensitivesOids/blob/master/oidpassswordleaks.csv
- https://misteralfa-hack.blogspot.com/2018/12/stringbleed-y-ahora-que-passwords-leaks.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2018-20394",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2018-12-23T21:29:01.153",
"references": [
{
"url": "https://github.com/ezelf/sensitivesOids/blob/master/oidpassswordleaks.csv",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://misteralfa-hack.blogspot.com/2018/12/stringbleed-y-ahora-que-passwords-leaks.html",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/ezelf/sensitivesOids/blob/master/oidpassswordleaks.csv",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://misteralfa-hack.blogspot.com/2018/12/stringbleed-y-ahora-que-passwords-leaks.html",
"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-522"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Thomson DWG849 STC0.01.16, DWG850-4 ST9C.05.25, DWG855 ST80.20.26, and TWG870 STB2.01.36 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests."
},
{
"lang": "es",
"value": "Los dispositivos Thomson DWG849 STC0.01.16, DWG850-4 ST9C.05.25, DWG855 ST80.20.26 y TWG870 STB2.01.36 permiten que atacantes remotos descubran credenciales mediante peticiones SNMP iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 e iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0."
}
],
"lastModified": "2026-06-17T01:52:46.093",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:technicolor:dwg849_firmware:stc0.01.16:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BA8874EF-9DD8-4227-BAC0-B155BD574A30"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:technicolor:dwg849:1.0:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "FD4DA558-4278-4E54-B133-26582C1CC998"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:technicolor:dwg850-4_firmware:st9c.05.25:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6DDA12EA-3346-48DC-9149-DC9CFAE17D8D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:technicolor:dwg850-4:2.1:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3A75FE63-AEB1-44C5-AB69-D43B49471D54"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:technicolor:dwg855_firmware:st80.20.26:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5922BE7A-8E76-4D15-B7A2-D46D4B7FF625"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:technicolor:dwg855:2.1:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "4F3BFA33-8094-421E-9F79-33B8FC3E75B3"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:technicolor:twg870_firmware:stb2.01.36:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "85051A96-2816-4520-BF63-9775A72595C6"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:technicolor:twg870:1.1:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "52A22B4D-B015-40C2-88BB-97B24DD92BFC"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}