CVE-2023-6340 (GCVE-0-2023-6340)
Vulnerability from cvelistv5 – Published: 2024-01-17 23:57 – Updated: 2025-06-11 16:40
VLAI
EPSS
VEX
Summary
SonicWall Capture Client version 3.7.10, NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-30 15:23 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SN… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| SonicWall | Capture Client |
Affected:
3.7.10 and earlier versions
|
guessed | |
| SonicWall | NetExtender |
Affected:
10.2.337 and earlier versions
|
guessed |
Date Public
2024-01-17 07:27
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T08:28:21.581Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-6340",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-30T15:23:04.082962Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-06-11T16:40:22.236Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"platforms": [
"Windows"
],
"product": "Capture Client",
"vendor": "SonicWall",
"versions": [
{
"status": "affected",
"version": "3.7.10 and earlier versions"
}
]
},
{
"defaultStatus": "unknown",
"platforms": [
"Windows",
"64 bit",
"32 bit"
],
"product": "NetExtender",
"vendor": "SonicWall",
"versions": [
{
"status": "affected",
"version": "10.2.337 and earlier versions"
}
]
}
],
"datePublic": "2024-01-17T07:27:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "SonicWall Capture Client version 3.7.10,\u0026nbsp;NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability."
}
],
"value": "SonicWall Capture Client version 3.7.10,\u00a0NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-17T23:57:06.142Z",
"orgId": "44b2ff79-1416-4492-88bb-ed0da00c7315",
"shortName": "sonicwall"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "44b2ff79-1416-4492-88bb-ed0da00c7315",
"assignerShortName": "sonicwall",
"cveId": "CVE-2023-6340",
"datePublished": "2024-01-17T23:57:06.142Z",
"dateReserved": "2023-11-27T22:23:00.404Z",
"dateUpdated": "2025-06-11T16:40:22.236Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-6340",
"date": "2026-09-19",
"epss": "0.00213",
"percentile": "0.11947"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:sonicwall:capture_client:*:*:*:*:*:*:*:*",
"matchCriteriaId": "9EA62B9D-9A7C-447A-BA0C-5ECFF6C74515",
"versionEndIncluding": "3.7.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:sonicwall:netextender:*:*:*:*:*:windows:*:*",
"matchCriteriaId": "BB83F5B1-CD28-4AC4-913C-48C0A7EE32FB",
"versionEndIncluding": "10.2.337",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "SonicWall Capture Client version 3.7.10,\u00a0NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability."
},
{
"lang": "es",
"value": "SonicWall Capture Client versi\u00f3n 3.7.10, NetExtender client versi\u00f3n 10.2.337 y versiones anteriores se instalan con el controlador sfpmonitor.sys. Se ha descubierto que el controlador es vulnerable a la denegaci\u00f3n de servicio (DoS) causada por una vulnerabilidad de desbordamiento de b\u00fafer en la regi\u00f3n stack de la memoria."
}
],
"id": "CVE-2023-6340",
"lastModified": "2024-11-21T08:43:39.227",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2024-01-18T00:15:38.080",
"references": [
{
"source": "PSIRT@sonicwall.com",
"tags": [
"Vendor Advisory"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
}
],
"sourceIdentifier": "PSIRT@sonicwall.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-121"
}
],
"source": "PSIRT@sonicwall.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"platforms": [
"Windows"
],
"product": "Capture Client",
"vendor": "SonicWall",
"versions": [
{
"status": "affected",
"version": "3.7.10 and earlier versions"
}
]
},
{
"defaultStatus": "unknown",
"platforms": [
"Windows",
"64 bit",
"32 bit"
],
"product": "NetExtender",
"vendor": "SonicWall",
"versions": [
{
"status": "affected",
"version": "10.2.337 and earlier versions"
}
]
}
],
"source": "PSIRT@sonicwall.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:sonicwall:capture_client:*:*:*:*:*:*:*:*",
"matchCriteriaId": "9EA62B9D-9A7C-447A-BA0C-5ECFF6C74515",
"versionEndIncluding": "3.7.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:sonicwall:netextender:*:*:*:*:*:windows:*:*",
"matchCriteriaId": "BB83F5B1-CD28-4AC4-913C-48C0A7EE32FB",
"versionEndIncluding": "10.2.337",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "SonicWall Capture Client version 3.7.10,\u00a0NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability."
},
{
"lang": "es",
"value": "SonicWall Capture Client versi\u00f3n 3.7.10, NetExtender client versi\u00f3n 10.2.337 y versiones anteriores se instalan con el controlador sfpmonitor.sys. Se ha descubierto que el controlador es vulnerable a la denegaci\u00f3n de servicio (DoS) causada por una vulnerabilidad de desbordamiento de b\u00fafer en la regi\u00f3n stack de la memoria."
}
],
"id": "CVE-2023-6340",
"lastModified": "2026-06-17T06:50:33.943",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-6340",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-30T15:23:04.082962Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-01-18T00:15:38.080",
"references": [
{
"source": "PSIRT@sonicwall.com",
"tags": [
"Vendor Advisory"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
}
],
"sourceIdentifier": "PSIRT@sonicwall.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-121"
}
],
"source": "PSIRT@sonicwall.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-28T22:44:38+00:00",
"cve": "CVE-2023-6340",
"id": "CVE-2023-6340",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2023-6340",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-6340.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T08:28:21.581Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-6340",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-30T15:23:04.082962Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-08-30T15:24:03.412Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"platforms": [
"Windows"
],
"product": "Capture Client",
"vendor": "SonicWall",
"versions": [
{
"status": "affected",
"version": "3.7.10 and earlier versions"
}
]
},
{
"defaultStatus": "unknown",
"platforms": [
"Windows",
"64 bit",
"32 bit"
],
"product": "NetExtender",
"vendor": "SonicWall",
"versions": [
{
"status": "affected",
"version": "10.2.337 and earlier versions"
}
]
}
],
"datePublic": "2024-01-17T07:27:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "SonicWall Capture Client version 3.7.10,\u0026nbsp;NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability."
}
],
"value": "SonicWall Capture Client version 3.7.10,\u00a0NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-17T23:57:06.142Z",
"orgId": "44b2ff79-1416-4492-88bb-ed0da00c7315",
"shortName": "sonicwall"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "44b2ff79-1416-4492-88bb-ed0da00c7315",
"assignerShortName": "sonicwall",
"cveId": "CVE-2023-6340",
"datePublished": "2024-01-17T23:57:06.142Z",
"dateReserved": "2023-11-27T22:23:00.404Z",
"dateUpdated": "2025-06-11T16:40:22.236Z",
"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…
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…