CVE-2026-12665
Estado: Pendiente de análisisAlta (8.1)—
Gravedad8.1Alta · CVSS 3.1
Probabilidad de explotación0.25 %mayor que el 15 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
IBM MQ podría permitir que un atacante remoto ejecute código arbitrario debido a un desbordamiento de búfer en la pila (stack buffer overflow) al procesar certificados TLS con nombres distinguidos mal formados durante el establecimiento de la conexión del canal.
Traducción automática del texto original de NVD (en inglés).
CVSS
- Puntuación base
- 8.1
- Versión
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.25 %
- Percentil entre todas las CVEs puntuadas
- 15
- Fecha de la puntuación
- 20/10/2026
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).
Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access90 % - Impacto principal
T1059Command and Scripting Interpreterexecution85 %
Vector AV:N/PR:N/UI:N y desbordamiento de búfer en pila al procesar certificados TLS malformados permiten ejecución arbitraria de código remota.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-121
Referencias
Mostrar las 1 referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-12665",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-12665",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-10-20T03:55:37.439130Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@us.ibm.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.2
}
]
},
"affected": [
{
"source": "psirt@us.ibm.com",
"affectedData": [
{
"vendor": "IBM",
"product": "MQ Operator",
"versions": [
{
"status": "affected",
"version": "3.2.0",
"versionType": "semver",
"lessThanOrEqual": "3.2.29"
},
{
"status": "affected",
"version": "3.3.0",
"lessThan": "3.4.0",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.4.1",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.5.1",
"versionType": "semver",
"lessThanOrEqual": "3.5.3"
},
{
"status": "affected",
"version": "3.6.0",
"versionType": "semver",
"lessThanOrEqual": "3.6.4"
},
{
"status": "affected",
"version": "3.7.0",
"versionType": "semver",
"lessThanOrEqual": "3.7.2"
},
{
"status": "affected",
"version": "3.8.0",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.8.1",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.9.0",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.9.1",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.9.2",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.0.1",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.0.2",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.0.3",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.0.4",
"versionType": "semver"
},
{
"status": "affected",
"version": "2.0.0",
"versionType": "semver",
"lessThanOrEqual": "2.0.29"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "IBM",
"product": "MQ Advanced container images",
"versions": [
{
"status": "affected",
"version": "9.4.0.6-r1",
"versionType": "semver",
"lessThanOrEqual": "r1, 9.4.0.6-r2, 9.4.0.7-r1, 9.4.0.10-r1, 9.4.0.10-r2, 9.4.0.11-r1, 9.4.0.11-r2, 9.4.0.11-r3, 9.4.0.12-r1, 9.4.0.15-r1 - 9.4.0.15-r4, 9.4.0.16-r1, 9.4.0.16-r2, 9.4.0.17-r1, 9.4.0.17-r2, 9.4.0.20-r1, 9.4.0.21-r1, 9.4.0.21-r2, 9.4.0.25-r1 - 9.4.0.25-r3, 9.4.0.26-r1CD: 9.4.1.0-r1, 9.4.1.0-r2, 9.4.1.1-r1, 9.4.2.0-r1, 9.4.2.0-r2, 9.4.2.1-r1, 9.4.2.1-r2, 9.4.3.0-r1, 9.4.3.0-r2, 9.4.3.1-r1 - 9.4.3.1-r3, 9.4.4.0-r1 - 9.4.4.0-r4, 9.4.4.1-r1, 9.4.5.0-r1, 9.4.5.0-r2, 9.4.5.1-r1, 10.0.0.0-r1 - 10.0.0.0-r4, 10.0.0.5-r1LTS: 9.3.0.0-r1, 9.3.0.0-r2, 9.3.0.0-r3, 9.3.0.1-r1, 9.3.0.1-r2, 9.3.0.1-r3, 9.3.0.1-r4, 9.3.0.3-r1, 9.3.0.4-r1, 9.3.0.4-r2, 9.3.0.5-r1, 9.3.0.5-r2, 9.3.0.5-r3, 9.3.0.6-r1, 9.3.0.10-r1, 9.3.0.10-r2, 9.3.0.11-r1,9.3.0.11-r2, 9.3.0.15-r1, 9.3.0.16-r1, 9.3.0.16-r2, 9.3.0.17-r1, 9.3.0.17-r2, 9.3.0.17-r3, 9.3.0.20-r1, 9.3.0.20-r2, 9.3.0.21-r1, 9.3.0.21-r2, 9.3.0.21-r3, 9.3.0.25-r1, 9.4.0.0-r1, 9.4.0.0-r2, 9.4.0.0-r3, 9.4.0.5-r1, 9.4.0.5-r2"
},
{
"status": "affected",
"version": "9.4.0.6-r2"
},
{
"status": "affected",
"version": "9.4.0.7-r1"
},
{
"status": "affected",
"version": "9.4.0.10-r1"
},
{
"status": "affected",
"version": "9.4.0.10-r2"
},
{
"status": "affected",
"version": "9.4.0.11-r1"
},
{
"status": "affected",
"version": "9.4.0.11-r2"
},
{
"status": "affected",
"version": "9.4.0.11-r3"
},
{
"status": "affected",
"version": "9.4.0.12-r1"
},
{
"status": "affected",
"version": "9.4.0.15-r1",
"versionType": "custom",
"lessThanOrEqual": "9.4.0.15-r4"
},
{
"status": "affected",
"version": "9.4.0.16-r1"
},
{
"status": "affected",
"version": "9.4.0.16-r2"
},
{
"status": "affected",
"version": "9.4.0.17-r1"
},
{
"status": "affected",
"version": "9.4.0.17-r2"
},
{
"status": "affected",
"version": "9.4.0.20-r1"
},
{
"status": "affected",
"version": "9.4.0.21-r1"
},
{
"status": "affected",
"version": "9.4.0.21-r2"
},
{
"status": "affected",
"version": "9.4.0.25-r1",
"versionType": "custom",
"lessThanOrEqual": "9.4.0.25-r3"
},
{
"status": "affected",
"version": "9.4.0.26-r1"
},
{
"status": "affected",
"version": "9.4.1.0-r1"
},
{
"status": "affected",
"version": "9.4.1.0-r2"
},
{
"status": "affected",
"version": "9.4.1.1-r1"
},
{
"status": "affected",
"version": "9.4.2.0-r1"
},
{
"status": "affected",
"version": "9.4.2.0-r2"
},
{
"status": "affected",
"version": "9.4.2.1-r1"
},
{
"status": "affected",
"version": "9.4.2.1-r2"
},
{
"status": "affected",
"version": "9.4.3.0-r1"
},
{
"status": "affected",
"version": "9.4.3.0-r2"
},
{
"status": "affected",
"version": "9.4.3.1-r1",
"versionType": "custom",
"lessThanOrEqual": "9.4.3.1-r3"
},
{
"status": "affected",
"version": "9.4.4.0-r1"
},
{
"status": "affected",
"version": "9.4.4.1-r1"
},
{
"status": "affected",
"version": "9.4.5.0-r1"
},
{
"status": "affected",
"version": "9.4.5.0-r2"
},
{
"status": "affected",
"version": "9.4.5.1-r1"
},
{
"status": "affected",
"version": "10.0.0.0-r1",
"versionType": "custom",
"lessThanOrEqual": "10.0.0.0-r4"
},
{
"status": "affected",
"version": "10.0.0.5-r1"
},
{
"status": "affected",
"version": "9.3.0.0-r1"
},
{
"status": "affected",
"version": "9.3.0.0-r2"
},
{
"status": "affected",
"version": "9.3.0.0-r3"
},
{
"status": "affected",
"version": "9.3.0.1-r1"
},
{
"status": "affected",
"version": "9.3.0.1-r2"
},
{
"status": "affected",
"version": "9.3.0.1-r3"
},
{
"status": "affected",
"version": "9.3.0.1-r4"
},
{
"status": "affected",
"version": "9.3.0.3-r1"
},
{
"status": "affected",
"version": "9.3.0.4-r1"
},
{
"status": "affected",
"version": "9.3.0.4-r2"
},
{
"status": "affected",
"version": "9.3.0.5-r1"
},
{
"status": "affected",
"version": "9.3.0.5-r2"
},
{
"status": "affected",
"version": "9.3.0.5-r3"
},
{
"status": "affected",
"version": "9.3.0.6-r1"
},
{
"status": "affected",
"version": "9.3.0.10-r1"
},
{
"status": "affected",
"version": "9.3.0.10-r2"
},
{
"status": "affected",
"version": "9.3.0.11-r1"
},
{
"status": "affected",
"version": "9.3.0.11-r2"
},
{
"status": "affected",
"version": "9.3.0.15-r1"
},
{
"status": "affected",
"version": "9.3.0.16-r1"
},
{
"status": "affected",
"version": "9.3.0.16-r2"
},
{
"status": "affected",
"version": "9.3.0.17-r1"
},
{
"status": "affected",
"version": "9.3.0.17-r2"
},
{
"status": "affected",
"version": "9.3.0.17-r3"
},
{
"status": "affected",
"version": "9.3.0.20-r1"
},
{
"status": "affected",
"version": "9.3.0.20-r2"
},
{
"status": "affected",
"version": "9.3.0.21-r1"
},
{
"status": "affected",
"version": "9.3.0.21-r2"
},
{
"status": "affected",
"version": "9.3.0.21-r3"
},
{
"status": "affected",
"version": "9.3.0.25-r1"
},
{
"status": "affected",
"version": "9.4.0.0-r1"
},
{
"status": "affected",
"version": "9.4.0.0-r2"
},
{
"status": "affected",
"version": "9.4.0.0-r3"
},
{
"status": "affected",
"version": "9.4.0.5-r1"
},
{
"status": "affected",
"version": "9.4.0.5-r2"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-10-19T17:17:18.773",
"references": [
{
"url": "https://www.ibm.com/support/pages/node/7292667",
"source": "psirt@us.ibm.com"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@us.ibm.com",
"description": [
{
"lang": "en",
"value": "CWE-121"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment."
}
],
"lastModified": "2026-10-20T13:16:43.213",
"sourceIdentifier": "psirt@us.ibm.com"
}