CVE-2026-24349
Full vulnerability record from the local CVENow database.
Description
A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 (All versions), SIMATIC WinCC Unified PC Runtime V17 (All versions), SIMATIC WinCC Unified PC Runtime V18 (All versions), SIMATIC WinCC Unified PC Runtime V19 (All versions), SIMATIC WinCC Unified PC Runtime V20 (All versions), SIMATIC WinCC Unified PC Runtime V21 (All versions < V21 Update 2). Insufficient protection of key material in WinCC Certificate Manager that could allow an attacker to extract sensitive information.
Severity
HIGH
CVSS score
8.2
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-06-09 10:16:42.967000
Last modified
2026-10-23 21:10:00.157000
View original CVE JSON
{
"id": "CVE-2026-24349",
"sourceIdentifier": "[email protected]",
"published": "2026-06-09T10:16:42.967",
"lastModified": "2026-10-23T21:10:00.157",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 (All versions), SIMATIC WinCC Unified PC Runtime V17 (All versions), SIMATIC WinCC Unified PC Runtime V18 (All versions), SIMATIC WinCC Unified PC Runtime V19 (All versions), SIMATIC WinCC Unified PC Runtime V20 (All versions), SIMATIC WinCC Unified PC Runtime V21 (All versions < V21 Update 2). Insufficient protection of key material in WinCC Certificate Manager that could allow an attacker to extract sensitive information."
},
{
"lang": "es",
"value": "Una vulnerabilidad ha sido identificada en SIMATIC WinCC Unified PC Runtime V16 (Todas las versiones), SIMATIC WinCC Unified PC Runtime V17 (Todas las versiones), SIMATIC WinCC Unified PC Runtime V18 (Todas las versiones), SIMATIC WinCC Unified PC Runtime V19 (Todas las versiones), SIMATIC WinCC Unified PC Runtime V20 (Todas las versiones), SIMATIC WinCC Unified PC Runtime V21 (Todas las versiones anteriores a V21 Update 2). Protección insuficiente del material clave en WinCC Certificate Manager que podría permitir a un atacante extraer información sensible."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Siemens",
"product": "SIMATIC WinCC Unified PC Runtime V16",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "*",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Siemens",
"product": "SIMATIC WinCC Unified PC Runtime V17",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "*",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Siemens",
"product": "SIMATIC WinCC Unified PC Runtime V18",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "*",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Siemens",
"product": "SIMATIC WinCC Unified PC Runtime V19",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "*",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Siemens",
"product": "SIMATIC WinCC Unified PC Runtime V20",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "*",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Siemens",
"product": "SIMATIC WinCC Unified PC Runtime V21",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "V21 Update 2",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/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",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.5,
"impactScore": 4.0
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-09T12:54:10.341457Z",
"id": "CVE-2026-24349",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-313"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:siemens:simatic_wincc_unified_pc_runtime:*:*:*:*:*:*:*:*",
"versionStartIncluding": "16",
"versionEndIncluding": "20",
"matchCriteriaId": "CEF729E0-97B1-411A-B389-380D66DFA90D"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:siemens:simatic_wincc_unified_pc_runtime:21:-:*:*:*:*:*:*",
"matchCriteriaId": "D4F8BBA0-A5EB-4B5D-AAA5-8BD4DAC9E892"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:siemens:simatic_wincc_unified_pc_runtime:21:update1:*:*:*:*:*:*",
"matchCriteriaId": "1CD85751-05B5-43B0-A5B5-624955D62190"
}
]
}
]
}
],
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-063511.html",
"source": "[email protected]",
"tags": [
"Mitigation",
"Vendor Advisory"
]
}
]
}