Refine your search
2 vulnerabilities found for FLEX I/O EtherNet/IP Adapters by Rockwell Automation
CVE-2026-0647 (GCVE-0-2026-0647)
Vulnerability from cvelistv5
Published
2026-06-16 14:20
Modified
2026-06-16 15:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-306 - Missing Authentication for Critical Function
Summary
An improper authentication security issue exists within the 1794-AENTR adapter's embedded web server. The vulnerability allows an unauthenticated attacker to change the device's web interface password by sending a crafted HTTP GET request to a specific endpoint, without any prior authentication being required. If exploited, this could lead to unauthorized access, account takeover, and loss of the device’s embedded web server’s availability.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Rockwell Automation | FLEX I/O EtherNet/IP Adapters |
Version: 2.012 < |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0647",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T15:23:37.954588Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T15:23:45.399Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "FLEX I/O EtherNet/IP Adapters",
"vendor": "Rockwell Automation",
"versions": [
{
"status": "affected",
"version": "2.012",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An improper authentication security issue exists within the 1794-AENTR adapter\u0027s embedded web server. The vulnerability allows an unauthenticated attacker to change the device\u0027s web interface password by sending a crafted HTTP GET request to a specific endpoint, without any prior authentication being\u0026nbsp;required. If exploited, this could lead to unauthorized access, account takeover, and loss of\u0026nbsp;the\u0026nbsp;device\u2019s embedded web server\u2019s\u0026nbsp;availability.\u0026nbsp;"
}
],
"value": "An improper authentication security issue exists within the 1794-AENTR adapter\u0027s embedded web server. The vulnerability allows an unauthenticated attacker to change the device\u0027s web interface password by sending a crafted HTTP GET request to a specific endpoint, without any prior authentication being\u00a0required. If exploited, this could lead to unauthorized access, account takeover, and loss of\u00a0the\u00a0device\u2019s embedded web server\u2019s\u00a0availability."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.8,
"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:L/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306: Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T14:20:35.423Z",
"orgId": "b73dd486-f505-4403-b634-40b078b177f0",
"shortName": "Rockwell"
},
"references": [
{
"url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1775.html"
}
],
"source": {
"advisory": "SD1775",
"discovery": "UNKNOWN"
},
"title": "Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters \u2013 Multiple Vulnerabilities",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "b73dd486-f505-4403-b634-40b078b177f0",
"assignerShortName": "Rockwell",
"cveId": "CVE-2026-0647",
"datePublished": "2026-06-16T14:20:12.535Z",
"dateReserved": "2026-01-06T16:09:07.074Z",
"dateUpdated": "2026-06-16T15:23:45.399Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-0646 (GCVE-0-2026-0646)
Vulnerability from cvelistv5
Published
2026-06-16 14:19
Modified
2026-06-16 15:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-401 - – Missing Release of Memory after Effective Lifetime
Summary
A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests. This vulnerability can result in the adapter faulting and losing connection to its associated I/O modules, requiring a manual reset to recover.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Rockwell Automation | FLEX I/O EtherNet/IP Adapters |
Version: 2.012 < |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0646",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T15:24:26.161390Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T15:24:33.927Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "FLEX I/O EtherNet/IP Adapters",
"vendor": "Rockwell Automation",
"versions": [
{
"status": "affected",
"version": "2.012",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A denial-of-service security issue exists within the 1794-AENTR adapter due to improper\u0026nbsp;memory handling\u0026nbsp;of CIP protocol requests. This\u0026nbsp;vulnerability\u0026nbsp;can result in the\u0026nbsp;adapter\u0026nbsp;faulting and losing connection to\u0026nbsp;its\u0026nbsp;associated I/O modules, requiring a manual reset to recover.\u0026nbsp;"
}
],
"value": "A denial-of-service security issue exists within the 1794-AENTR adapter due to improper\u00a0memory handling\u00a0of CIP protocol requests. This\u00a0vulnerability\u00a0can result in the\u00a0adapter\u00a0faulting and losing connection to\u00a0its\u00a0associated I/O modules, requiring a manual reset to recover."
}
],
"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-401",
"description": "CWE-401 \u2013 Missing Release of Memory after Effective Lifetime",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T14:19:21.386Z",
"orgId": "b73dd486-f505-4403-b634-40b078b177f0",
"shortName": "Rockwell"
},
"references": [
{
"url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1775.html"
}
],
"source": {
"advisory": "SD1775",
"discovery": "UNKNOWN"
},
"title": "Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters \u2013 Multiple Vulnerabilities",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "b73dd486-f505-4403-b634-40b078b177f0",
"assignerShortName": "Rockwell",
"cveId": "CVE-2026-0646",
"datePublished": "2026-06-16T14:19:21.386Z",
"dateReserved": "2026-01-06T16:08:44.716Z",
"dateUpdated": "2026-06-16T15:24:33.927Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}