CVE-2021-46304 (GCVE-0-2021-46304)
Vulnerability from cvelistv5 – Published: 2022-08-10 11:17 – Updated: 2025-10-20 18:00
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions), CP-8021 MASTER MODULE (All versions), CP-8022 MASTER MODULE WITH GPRS (All versions). The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-20 17:59 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
Impacted products
4 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Siemens | CP-8000 MASTER MODULE WITH I/O -25/+70°C |
Affected:
All versions
|
guessed | |
| Siemens | CP-8000 MASTER MODULE WITH I/O -40/+70°C |
Affected:
All versions
|
guessed | |
| Siemens | CP-8021 MASTER MODULE |
Affected:
All versions
|
guessed | |
| Siemens | CP-8022 MASTER MODULE WITH GPRS |
Affected:
All versions
|
guessed |
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"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-46304.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:02:11.304Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-185638.pdf"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-46304",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-10-20T17:59:46.912131Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-09-15T16:16:57.664Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "CP-8000 MASTER MODULE WITH I/O -25/+70\u00b0C",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "CP-8000 MASTER MODULE WITH I/O -40/+70\u00b0C",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "CP-8021 MASTER MODULE",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "CP-8022 MASTER MODULE WITH GPRS",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70\u00b0C (All versions), CP-8000 MASTER MODULE WITH I/O -40/+70\u00b0C (All versions), CP-8021 MASTER MODULE (All versions), CP-8022 MASTER MODULE WITH GPRS (All versions). The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284: Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-08-10T11:17:23.000Z",
"orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"shortName": "siemens"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-185638.pdf"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "productcert@siemens.com",
"ID": "CVE-2021-46304",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "CP-8000 MASTER MODULE WITH I/O -25/+70\u00b0C",
"version": {
"version_data": [
{
"version_value": "All versions"
}
]
}
},
{
"product_name": "CP-8000 MASTER MODULE WITH I/O -40/+70\u00b0C",
"version": {
"version_data": [
{
"version_value": "All versions"
}
]
}
},
{
"product_name": "CP-8021 MASTER MODULE",
"version": {
"version_data": [
{
"version_value": "All versions"
}
]
}
},
{
"product_name": "CP-8022 MASTER MODULE WITH GPRS",
"version": {
"version_data": [
{
"version_value": "All versions"
}
]
}
}
]
},
"vendor_name": "Siemens"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70\u00b0C (All versions), CP-8000 MASTER MODULE WITH I/O -40/+70\u00b0C (All versions), CP-8021 MASTER MODULE (All versions), CP-8022 MASTER MODULE WITH GPRS (All versions). The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-284: Improper Access Control"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-185638.pdf",
"refsource": "MISC",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-185638.pdf"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"assignerShortName": "siemens",
"cveId": "CVE-2021-46304",
"datePublished": "2022-08-10T11:17:23.000Z",
"dateReserved": "2022-01-14T00:00:00.000Z",
"dateUpdated": "2025-10-20T18:00:06.685Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched 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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
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