CVE-2026-24349 (GCVE-0-2026-24349)
Vulnerability from cvelistv5 – Published: 2026-06-09 08:46 – Updated: 2026-06-09 12:54
VLAI
EPSS
VEX
Summary
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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 12:54 UTC
CWE
- CWE-313 - Cleartext Storage in a File or on Disk
Assigner
References
1 reference
Impacted products
6 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Siemens | SIMATIC WinCC Unified PC Runtime V16 |
Affected:
0 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC WinCC Unified PC Runtime V17 |
Affected:
0 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC WinCC Unified PC Runtime V18 |
Affected:
0 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC WinCC Unified PC Runtime V19 |
Affected:
0 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC WinCC Unified PC Runtime V20 |
Affected:
0 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC WinCC Unified PC Runtime V21 |
Affected:
0 , < V21 Update 2
(custom)
|
guessed |
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{
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"vendor": "Siemens",
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"version": "0",
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},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
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"product": "SIMATIC WinCC Unified PC Runtime V21",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "productcert@siemens.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:siemens:simatic_wincc_unified_pc_runtime:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CEF729E0-97B1-411A-B389-380D66DFA90D",
"versionEndIncluding": "20",
"versionStartIncluding": "16",
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"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 \u003c V21 Update 2). Insufficient protection of key material in WinCC Certificate Manager that could allow an attacker to extract sensitive information."
},
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"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). Protecci\u00f3n insuficiente del material clave en WinCC Certificate Manager que podr\u00eda permitir a un atacante extraer informaci\u00f3n sensible."
}
],
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"lastModified": "2026-10-23T21:10:00.157",
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.5,
"impactScore": 4.0,
"source": "productcert@siemens.com",
"type": "Secondary"
}
],
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
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"availabilityRequirement": "NOT_DEFINED",
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"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
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"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"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",
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"id": "CVE-2026-24349",
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"product_status:known_not_affected": "1",
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},
"vulnrichment": {
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"timestamp": "2026-06-09T12:54:10.341457Z",
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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"cna": {
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}
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}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.