CVE-2026-3868 (GCVE-0-2026-3868)
Vulnerability from cvelistv5 – Published: 2026-04-27 02:56 – Updated: 2026-11-02 06:12
VLAI
EPSS
VEX
Summary
An improper handling of the length parameter inconsistency vulnerability has been identified in Moxa’s Secure Router. Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive. Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation. While successful exploitation can severely impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-27 15:13 UTC
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.moxa.com/en/support/product-support/s… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Moxa | EDR-8010 Series |
Affected:
1.0 , ≤ 3.23
(custom)
Unaffected: 3.24 (custom) cpe:2.3:a:moxa:edr-8010_series:*:*:*:*:*:*:*:* |
||
| Moxa | EDR-G9010 Series |
Affected:
1.0 , ≤ 3.23.1
(custom)
Unaffected: 3.24 (custom) cpe:2.3:a:moxa:edr-g9010_series:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-3868",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T15:13:55.314280Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T15:14:14.677Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "EDR-8010 Series",
"vendor": "Moxa",
"versions": [
{
"lessThanOrEqual": "3.23",
"status": "affected",
"version": "1.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "3.24",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "EDR-G9010 Series",
"vendor": "Moxa",
"versions": [
{
"lessThanOrEqual": "3.23.1",
"status": "affected",
"version": "1.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "3.24",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:moxa:edr-8010_series:*:*:*:*:*:*:*:*",
"versionEndIncluding": "3.23",
"versionStartIncluding": "1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:moxa:edr-8010_series:3.24:*:*:*:*:*:*:*",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:moxa:edr-g9010_series:*:*:*:*:*:*:*:*",
"versionEndIncluding": "3.23.1",
"versionStartIncluding": "1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:moxa:edr-g9010_series:3.24:*:*:*:*:*:*:*",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Leo Lin"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eAn improper handling of the length parameter inconsistency vulnerability has been identified in Moxa\u2019s Secure Router.\u0026nbsp;Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive.\u0026nbsp;Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation.\u0026nbsp;While successful exploitation can\u0026nbsp;severely\u0026nbsp;impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified.\u003c/p\u003e"
}
],
"value": "An improper handling of the length parameter inconsistency vulnerability has been identified in Moxa\u2019s Secure Router.\u00a0Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive.\u00a0Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation.\u00a0While successful exploitation can\u00a0severely\u00a0impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified."
}
],
"impacts": [
{
"capecId": "CAPEC-47",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-47: Buffer Overflow via Parameter Expansion"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-130",
"description": "CWE-130: Improper Handling of Length Parameter Inconsistency",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-02T06:12:49.479Z",
"orgId": "2e0a0ee2-d866-482a-9f5e-ac03d156dbaa",
"shortName": "Moxa"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261521-cve-2026-3867-cve-2026-3868-improper-ownership-management-and-improper-handling-of-length-parameter-incons"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "2e0a0ee2-d866-482a-9f5e-ac03d156dbaa",
"assignerShortName": "Moxa",
"cveId": "CVE-2026-3868",
"datePublished": "2026-04-27T02:56:34.266Z",
"dateReserved": "2026-03-10T07:56:29.470Z",
"dateUpdated": "2026-11-02T06:12:49.479Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-3868",
"date": "2026-11-01",
"epss": "0.00368",
"percentile": "0.30694"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "EDR-8010 Series",
"vendor": "Moxa",
"versions": [
{
"lessThanOrEqual": "3.23",
"status": "affected",
"version": "1.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "3.24",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "EDR-G9010 Series",
"vendor": "Moxa",
"versions": [
{
"lessThanOrEqual": "3.23.1",
"status": "affected",
"version": "1.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "3.24",
"versionType": "custom"
}
]
}
],
"source": "psirt@moxa.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An improper handling of the length parameter inconsistency vulnerability has been identified in Moxa\u2019s Secure Router.\u00a0Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive.\u00a0Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation.\u00a0While successful exploitation can\u00a0severely\u00a0impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified."
},
{
"lang": "es",
"value": "Una vulnerabilidad de inconsistencia en el manejo inadecuado del par\u00e1metro de longitud ha sido identificada en el Secure Router de Moxa. Debido a una validaci\u00f3n inadecuada de los par\u00e1metros de longitud en la interfaz de gesti\u00f3n HTTPS, un atacante remoto no autenticado podr\u00eda enviar solicitudes especialmente dise\u00f1adas que desencadenan una condici\u00f3n de desbordamiento de b\u00fafer, haciendo que el servicio web deje de responder. La explotaci\u00f3n exitosa puede resultar en una condici\u00f3n de denegaci\u00f3n de servicio que requiere un reinicio del dispositivo para restaurar el funcionamiento normal. Si bien la explotaci\u00f3n exitosa puede impactar severamente la disponibilidad del dispositivo afectado, no se ha identificado ning\u00fan impacto en la confidencialidad o integridad del producto afectado. Adem\u00e1s, no se ha identificado ning\u00fan impacto en la confidencialidad, integridad o disponibilidad en el sistema subsiguiente."
}
],
"id": "CVE-2026-3868",
"lastModified": "2026-10-26T22:10:00.163",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"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",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "psirt@moxa.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3868",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T15:13:55.314280Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-04-27T04:16:09.090",
"references": [
{
"source": "psirt@moxa.com",
"url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261521-cve-2026-3867-cve-2026-3868-improper-ownership-management-and-improper-handling-of-length-parameter-incons"
}
],
"sourceIdentifier": "psirt@moxa.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-130"
}
],
"source": "psirt@moxa.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-06-05T19:21:41+00:00",
"cve": "CVE-2026-3868",
"id": "CVE-2026-3868",
"initial_release_date": "2026-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2026-3868",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3868.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-3868",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T15:13:55.314280Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T15:14:09.753Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "EDR-8010 Series",
"vendor": "Moxa",
"versions": [
{
"lessThanOrEqual": "3.23",
"status": "affected",
"version": "1.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "3.24",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "EDR-G9010 Series",
"vendor": "Moxa",
"versions": [
{
"lessThanOrEqual": "3.23.1",
"status": "affected",
"version": "1.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "3.24",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:moxa:edr-8010_series:*:*:*:*:*:*:*:*",
"versionEndIncluding": "3.23",
"versionStartIncluding": "1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:moxa:edr-8010_series:3.24:*:*:*:*:*:*:*",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:moxa:edr-g9010_series:*:*:*:*:*:*:*:*",
"versionEndIncluding": "3.23.1",
"versionStartIncluding": "1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:moxa:edr-g9010_series:3.24:*:*:*:*:*:*:*",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Leo Lin"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eAn improper handling of the length parameter inconsistency vulnerability has been identified in Moxa\u2019s Secure Router.\u0026nbsp;Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive.\u0026nbsp;Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation.\u0026nbsp;While successful exploitation can\u0026nbsp;severely\u0026nbsp;impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified.\u003c/p\u003e"
}
],
"value": "An improper handling of the length parameter inconsistency vulnerability has been identified in Moxa\u2019s Secure Router.\u00a0Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive.\u00a0Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation.\u00a0While successful exploitation can\u00a0severely\u00a0impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified."
}
],
"impacts": [
{
"capecId": "CAPEC-47",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-47: Buffer Overflow via Parameter Expansion"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-130",
"description": "CWE-130: Improper Handling of Length Parameter Inconsistency",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-02T06:12:49.479Z",
"orgId": "2e0a0ee2-d866-482a-9f5e-ac03d156dbaa",
"shortName": "Moxa"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261521-cve-2026-3867-cve-2026-3868-improper-ownership-management-and-improper-handling-of-length-parameter-incons"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "2e0a0ee2-d866-482a-9f5e-ac03d156dbaa",
"assignerShortName": "Moxa",
"cveId": "CVE-2026-3868",
"datePublished": "2026-04-27T02:56:34.266Z",
"dateReserved": "2026-03-10T07:56:29.470Z",
"dateUpdated": "2026-11-02T06:12:49.479Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
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.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
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.