CVE-2026-1773 (GCVE-0-2026-1773)
Vulnerability from cvelistv5
Published
2026-02-24 13:13
Modified
2026-02-28 02:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-184 - Incomplete List of Disallowed Inputs
Summary
IEC 60870-5-104: Potential Denial of Service impact on reception of invalid U-format frame. Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Hitachi Energy | RTU500 series CMU firmware |
Version: 12.7.1 < Version: 13.5.1 < Version: 13.6.1 < Version: 13.7.1 < Version: 13.8.1 < |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-1773",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-28T02:19:44.432868Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-28T02:20:00.192Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "RTU500 series CMU firmware",
"vendor": "Hitachi Energy",
"versions": [
{
"lessThanOrEqual": "12.7.7",
"status": "affected",
"version": "12.7.1",
"versionType": "custom"
},
{
"lessThanOrEqual": "13.5.4",
"status": "affected",
"version": "13.5.1",
"versionType": "custom"
},
{
"lessThanOrEqual": "13.6.2",
"status": "affected",
"version": "13.6.1",
"versionType": "custom"
},
{
"lessThanOrEqual": "13.7.7",
"status": "affected",
"version": "13.7.1",
"versionType": "custom"
},
{
"status": "affected",
"version": "13.8.1",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "IEC 60870-5-104: Potential Denial of Service impact on reception of invalid U-format frame.\u0026nbsp;Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.\u003cbr\u003e"
}
],
"value": "IEC 60870-5-104: Potential Denial of Service impact on reception of invalid U-format frame.\u00a0Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation."
}
],
"impacts": [
{
"capecId": "CAPEC-278",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-278 Web Services Protocol Manipulation"
}
]
}
],
"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-184",
"description": "CWE-184 Incomplete List of Disallowed Inputs",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-24T13:40:55.104Z",
"orgId": "e383dce4-0c27-4495-91c4-0db157728d17",
"shortName": "Hitachi Energy"
},
"references": [
{
"url": "https://publisher.hitachienergy.com/preview?DocumentID=8DBD000237\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "e383dce4-0c27-4495-91c4-0db157728d17",
"assignerShortName": "Hitachi Energy",
"cveId": "CVE-2026-1773",
"datePublished": "2026-02-24T13:13:17.990Z",
"dateReserved": "2026-02-02T16:28:59.394Z",
"dateUpdated": "2026-02-28T02:20:00.192Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-1773\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-28T02:19:44.432868Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-28T02:19:54.971Z\"}}], \"cna\": {\"source\": {\"discovery\": \"UNKNOWN\"}, \"impacts\": [{\"capecId\": \"CAPEC-278\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-278 Web Services Protocol Manipulation\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 8.7, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"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\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Hitachi Energy\", \"product\": \"RTU500 series CMU firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"12.7.1\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"12.7.7\"}, {\"status\": \"affected\", \"version\": \"13.5.1\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"13.5.4\"}, {\"status\": \"affected\", \"version\": \"13.6.1\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"13.6.2\"}, {\"status\": \"affected\", \"version\": \"13.7.1\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"13.7.7\"}, {\"status\": \"affected\", \"version\": \"13.8.1\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://publisher.hitachienergy.com/preview?DocumentID=8DBD000237\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.5.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"IEC 60870-5-104: Potential Denial of Service impact on reception of invalid U-format frame.\\u00a0Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"IEC 60870-5-104: Potential Denial of Service impact on reception of invalid U-format frame.\u0026nbsp;Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-184\", \"description\": \"CWE-184 Incomplete List of Disallowed Inputs\"}]}], \"providerMetadata\": {\"orgId\": \"e383dce4-0c27-4495-91c4-0db157728d17\", \"shortName\": \"Hitachi Energy\", \"dateUpdated\": \"2026-02-24T13:40:55.104Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-1773\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-28T02:20:00.192Z\", \"dateReserved\": \"2026-02-02T16:28:59.394Z\", \"assignerOrgId\": \"e383dce4-0c27-4495-91c4-0db157728d17\", \"datePublished\": \"2026-02-24T13:13:17.990Z\", \"assignerShortName\": \"Hitachi Energy\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…