CVE-2023-51394 (GCVE-0-2023-51394)
Vulnerability from cvelistv5 – Published: 2024-02-23 19:13 – Updated: 2024-08-16 19:31
VLAI
EPSS
VEX
Title
Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash
Summary
High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SDK before v7.4.0, causing a system crash.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-26 15:58 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| silabs.com | Ember ZNet SDK |
Affected:
0 , < 7.4.0
(7.4.x)
|
guessed | |
| silabs | emberznet_sdk |
Affected:
0 , < 7.4.0
(custom)
cpe:2.3:a:silabs:emberznet_sdk:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T22:32:09.448Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://community.silabs.com/068Vm000001NL4u"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"cpes": [
"cpe:2.3:a:silabs:emberznet_sdk:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "emberznet_sdk",
"vendor": "silabs",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-51394",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-02-26T15:58:43.725239Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-08-16T19:31:32.322Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageName": "Ember ZNet SDK",
"platforms": [
"32 bit",
"ARM"
],
"product": "Ember ZNet SDK",
"repo": "https://github.com/SiliconLabs/gecko_sdk/releases",
"vendor": "silabs.com",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "7.4.x"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs\u0027s Ember ZNet SDK before v7.4.0, causing a system crash."
}
],
"value": "High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs\u0027s Ember ZNet SDK before v7.4.0, causing a system crash."
}
],
"impacts": [
{
"capecId": "CAPEC-595",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-595 Connection Reset"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-02-23T19:13:37.199Z",
"orgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
"shortName": "Silabs"
},
"references": [
{
"url": "https://community.silabs.com/068Vm000001NL4u"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
"assignerShortName": "Silabs",
"cveId": "CVE-2023-51394",
"datePublished": "2024-02-23T19:13:37.199Z",
"dateReserved": "2023-12-18T20:56:24.812Z",
"dateUpdated": "2024-08-16T19:31:32.322Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-51394",
"date": "2026-10-02",
"epss": "0.00515",
"percentile": "0.4177"
},
"fkie_nvd": {
"descriptions": [
{
"lang": "en",
"value": "High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs\u0027s Ember ZNet SDK before v7.4.0, causing a system crash."
},
{
"lang": "es",
"value": "Los entornos de mucho tr\u00e1fico pueden provocar una vulnerabilidad de desreferencia de puntero NULL en el SDK Ember ZNet de Silicon Labs anterior a la versi\u00f3n 7.4.0, lo que provoca un fallo del sistema."
}
],
"id": "CVE-2023-51394",
"lastModified": "2024-11-21T08:38:01.250",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "product-security@silabs.com",
"type": "Secondary"
}
]
},
"published": "2024-02-23T20:15:51.880",
"references": [
{
"source": "product-security@silabs.com",
"url": "https://community.silabs.com/068Vm000001NL4u"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://community.silabs.com/068Vm000001NL4u"
}
],
"sourceIdentifier": "product-security@silabs.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "product-security@silabs.com",
"type": "Secondary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"packageName": "Ember ZNet SDK",
"platforms": [
"32 bit",
"ARM"
],
"product": "Ember ZNet SDK",
"repo": "https://github.com/SiliconLabs/gecko_sdk/releases",
"vendor": "silabs.com",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "7.4.x"
}
]
}
],
"source": "product-security@silabs.com"
},
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:silabs:emberznet_sdk:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "emberznet_sdk",
"vendor": "silabs",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:silabs:emberznet:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4302C76B-4600-4188-9A73-77BEAE036F47",
"versionEndExcluding": "7.4.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs\u0027s Ember ZNet SDK before v7.4.0, causing a system crash."
},
{
"lang": "es",
"value": "Los entornos de mucho tr\u00e1fico pueden provocar una vulnerabilidad de desreferencia de puntero NULL en el SDK Ember ZNet de Silicon Labs anterior a la versi\u00f3n 7.4.0, lo que provoca un fallo del sistema."
}
],
"id": "CVE-2023-51394",
"lastModified": "2026-06-17T06:40:52.290",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "product-security@silabs.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-51394",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-02-26T15:58:43.725239Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-02-23T20:15:51.880",
"references": [
{
"source": "product-security@silabs.com",
"tags": [
"Permissions Required"
],
"url": "https://community.silabs.com/068Vm000001NL4u"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Permissions Required"
],
"url": "https://community.silabs.com/068Vm000001NL4u"
}
],
"sourceIdentifier": "product-security@silabs.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "product-security@silabs.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-28T22:50:34+00:00",
"cve": "CVE-2023-51394",
"id": "CVE-2023-51394",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-51394.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T22:32:09.448Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://community.silabs.com/068Vm000001NL4u"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"cpes": [
"cpe:2.3:a:silabs:emberznet_sdk:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "emberznet_sdk",
"vendor": "silabs",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-51394",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-02-26T15:58:43.725239Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-08-16T19:31:28.779Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageName": "Ember ZNet SDK",
"platforms": [
"32 bit",
"ARM"
],
"product": "Ember ZNet SDK",
"repo": "https://github.com/SiliconLabs/gecko_sdk/releases",
"vendor": "silabs.com",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "7.4.x"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs\u0027s Ember ZNet SDK before v7.4.0, causing a system crash."
}
],
"value": "High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs\u0027s Ember ZNet SDK before v7.4.0, causing a system crash."
}
],
"impacts": [
{
"capecId": "CAPEC-595",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-595 Connection Reset"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-02-23T19:13:37.199Z",
"orgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
"shortName": "Silabs"
},
"references": [
{
"url": "https://community.silabs.com/068Vm000001NL4u"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
"assignerShortName": "Silabs",
"cveId": "CVE-2023-51394",
"datePublished": "2024-02-23T19:13:37.199Z",
"dateReserved": "2023-12-18T20:56:24.812Z",
"dateUpdated": "2024-08-16T19:31:32.322Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…