CVE-2024-56336
A vulnerability has been identified in SINAMICS S200 (All versions with serial number beginning with SZVS8, SZVS9, SZVS0 or SZVSN and the FS number is 02). The affected device contains an unlocked bootloader. This security oversight enables attackers to inject malicious code, or install untrusted firmware. The intrinsic security features designed to protect against data manipulation and unauthorized access are compromised when the bootloader is not secured.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 9.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.55%
- Percentil entre todas las CVEs puntuadas: 44
- Fecha de la puntuación: 5/10/2026
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 access60 % - Impacto principal
T1078Valid Accountsstealth · persistence · privilege escalation · initial access55 %
Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.
🛡️ 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-287
Referencias
JSON original (NVD)
Mostrar
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"cveTags": [],
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"id": "CVE-2024-56336",
"role": "CISA Coordinator",
"options": [
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"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
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"version": "2.0.3",
"timestamp": "2025-03-11T14:02:50.112336Z"
}
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"cvssMetricV31": [
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"type": "Secondary",
"source": "productcert@siemens.com",
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"version": "3.1",
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"attackVector": "NETWORK",
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"integrityImpact": "HIGH",
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"confidentialityImpact": "HIGH"
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"impactScore": 5.9,
"exploitabilityScore": 3.9
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"cvssMetricV40": [
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"type": "Secondary",
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"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
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"vulnConfidentialityImpact": "HIGH",
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"modifiedAttackRequirements": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
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"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
{
"source": "productcert@siemens.com",
"affectedData": [
{
"vendor": "Siemens",
"product": "SINAMICS S200",
"versions": [
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"version": "0",
"lessThan": "*",
"versionType": "custom"
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"defaultStatus": "unknown"
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"published": "2025-03-11T10:15:16.007",
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-787280.html",
"source": "productcert@siemens.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
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"type": "Secondary",
"source": "productcert@siemens.com",
"description": [
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"lang": "en",
"value": "CWE-287"
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"descriptions": [
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"lang": "en",
"value": "A vulnerability has been identified in SINAMICS S200 (All versions with serial number beginning with SZVS8, SZVS9, SZVS0 or SZVSN and the FS number is 02). The affected device contains an unlocked bootloader. This security oversight enables attackers to inject malicious code, or install untrusted firmware. The intrinsic security features designed to protect against data manipulation and unauthorized access are compromised when the bootloader is not secured."
},
{
"lang": "es",
"value": "Se ha identificado una vulnerabilidad en SINAMICS S200 (todas las versiones con número de serie que comience con SZVS8, SZVS9, SZVS0 o SZVSN y el número FS sea 02). El dispositivo afectado contiene un cargador de arranque desbloqueado. Esta omisión de seguridad permite a los atacantes inyectar código malicioso o instalar firmware no confiable. Las características de seguridad intrínsecas diseñadas para proteger contra la manipulación de datos y el acceso no autorizado se ven comprometidas cuando el cargador de arranque no está protegido."
}
],
"lastModified": "2026-06-17T08:12:04.173",
"sourceIdentifier": "productcert@siemens.com"
}