CVE-2021-32976 (GCVE-0-2021-32976)
Vulnerability from cvelistv5 – Published: 2022-04-01 22:17 – Updated: 2025-04-16 16:33
VLAI?
Title
Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow
Summary
Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.
Severity ?
9.8 (Critical)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Moxa | NPort IAW5000A-I/O series firmware |
Affected:
unspecified , ≤ 2.2
(custom)
|
Credits
Konstantin Kondratev, Evgeniy Druzhinin and Ilya Karpov of Rostelecom-Solar reported these vulnerabilities to Moxa.
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T23:33:56.209Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-32976",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-16T15:56:27.792123Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-16T16:33:12.438Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "NPort IAW5000A-I/O series firmware",
"vendor": "Moxa",
"versions": [
{
"lessThanOrEqual": "2.2",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Konstantin Kondratev, Evgeniy Druzhinin and Ilya Karpov of Rostelecom-Solar reported these vulnerabilities to Moxa."
}
],
"descriptions": [
{
"lang": "en",
"value": "Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-04-01T22:17:14.000Z",
"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"shortName": "icscert"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities"
}
],
"solutions": [
{
"lang": "en",
"value": "Moxa has developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch.\n\nMoxa has also published a security advisory to provide more information."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow",
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "ics-cert@hq.dhs.gov",
"ID": "CVE-2021-32976",
"STATE": "PUBLIC",
"TITLE": "Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "NPort IAW5000A-I/O series firmware",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_value": "2.2"
}
]
}
}
]
},
"vendor_name": "Moxa"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Konstantin Kondratev, Evgeniy Druzhinin and Ilya Karpov of Rostelecom-Solar reported these vulnerabilities to Moxa."
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-121 Stack-based Buffer Overflow"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01",
"refsource": "CONFIRM",
"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01"
},
{
"name": "https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities",
"refsource": "CONFIRM",
"url": "https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities"
}
]
},
"solution": [
{
"lang": "en",
"value": "Moxa has developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch.\n\nMoxa has also published a security advisory to provide more information."
}
],
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"assignerShortName": "icscert",
"cveId": "CVE-2021-32976",
"datePublished": "2022-04-01T22:17:14.000Z",
"dateReserved": "2021-05-13T00:00:00.000Z",
"dateUpdated": "2025-04-16T16:33:12.438Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"fkie_nvd": {
"configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:moxa:nport_iaw5150a-6i\\\\/o_firmware:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"2.2\", \"matchCriteriaId\": \"47EB7A90-A02B-4C42-92A5-7211E1006A51\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:moxa:nport_iaw5150a-6i\\\\/o:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"529AE3C8-5DE0-40EF-95E4-A5B350BCF622\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:moxa:nport_iaw5150a-12i\\\\/o_firmware:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"2.2\", \"matchCriteriaId\": \"45C11EE4-AA32-44B1-85AF-99D1BE4BB28C\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:moxa:nport_iaw5150a-12i\\\\/o:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"7941EC99-D0BA-4EC6-B1AE-0F836356805C\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:moxa:nport_iaw5250a-6i\\\\/o_firmware:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"2.2\", \"matchCriteriaId\": \"30FA4CDC-76ED-4AAA-A575-7AA472CC2BE6\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:moxa:nport_iaw5250a-6i\\\\/o:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"B09B3B88-7382-41D6-A3ED-514E170D52FA\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:moxa:nport_iaw5250a-12i\\\\/o_firmware:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"2.2\", \"matchCriteriaId\": \"E0BE59D3-D91D-4E53-B4F3-C29488261E88\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:moxa:nport_iaw5250a-12i\\\\/o:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"38F518C4-245F-4225-9FC5-DFDFECD38ECE\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.\"}, {\"lang\": \"es\", \"value\": \"Cinco desbordamientos de b\\u00fafer en el servidor web incorporado en la serie Moxa NPort IAW5000A-I/O firmware versi\\u00f3n 2.2 o anterior pueden permitir a un atacante remoto iniciar un ataque de denegaci\\u00f3n de servicio y ejecutar c\\u00f3digo arbitrario\"}]",
"id": "CVE-2021-32976",
"lastModified": "2024-11-21T06:08:02.613",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"ics-cert@hq.dhs.gov\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:P/A:P\", \"baseScore\": 7.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "2022-04-01T23:15:10.083",
"references": "[{\"url\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\", \"source\": \"ics-cert@hq.dhs.gov\", \"tags\": [\"Mitigation\", \"Third Party Advisory\", \"US Government Resource\"]}, {\"url\": \"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\", \"source\": \"ics-cert@hq.dhs.gov\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mitigation\", \"Third Party Advisory\", \"US Government Resource\"]}, {\"url\": \"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
"sourceIdentifier": "ics-cert@hq.dhs.gov",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"ics-cert@hq.dhs.gov\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-121\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-32976\",\"sourceIdentifier\":\"ics-cert@hq.dhs.gov\",\"published\":\"2022-04-01T23:15:10.083\",\"lastModified\":\"2024-11-21T06:08:02.613\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.\"},{\"lang\":\"es\",\"value\":\"Cinco desbordamientos de b\u00fafer en el servidor web incorporado en la serie Moxa NPort IAW5000A-I/O firmware versi\u00f3n 2.2 o anterior pueden permitir a un atacante remoto iniciar un ataque de denegaci\u00f3n de servicio y ejecutar c\u00f3digo arbitrario\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-121\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:moxa:nport_iaw5150a-6i\\\\/o_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.2\",\"matchCriteriaId\":\"47EB7A90-A02B-4C42-92A5-7211E1006A51\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:moxa:nport_iaw5150a-6i\\\\/o:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"529AE3C8-5DE0-40EF-95E4-A5B350BCF622\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:moxa:nport_iaw5150a-12i\\\\/o_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.2\",\"matchCriteriaId\":\"45C11EE4-AA32-44B1-85AF-99D1BE4BB28C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:moxa:nport_iaw5150a-12i\\\\/o:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7941EC99-D0BA-4EC6-B1AE-0F836356805C\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:moxa:nport_iaw5250a-6i\\\\/o_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.2\",\"matchCriteriaId\":\"30FA4CDC-76ED-4AAA-A575-7AA472CC2BE6\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:moxa:nport_iaw5250a-6i\\\\/o:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B09B3B88-7382-41D6-A3ED-514E170D52FA\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:moxa:nport_iaw5250a-12i\\\\/o_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.2\",\"matchCriteriaId\":\"E0BE59D3-D91D-4E53-B4F3-C29488261E88\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:moxa:nport_iaw5250a-12i\\\\/o:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"38F518C4-245F-4225-9FC5-DFDFECD38ECE\"}]}]}],\"references\":[{\"url\":\"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\",\"source\":\"ics-cert@hq.dhs.gov\",\"tags\":[\"Mitigation\",\"Third Party Advisory\",\"US Government Resource\"]},{\"url\":\"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\",\"source\":\"ics-cert@hq.dhs.gov\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mitigation\",\"Third Party Advisory\",\"US Government Resource\"]},{\"url\":\"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T23:33:56.209Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-32976\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-16T15:56:27.792123Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-16T15:56:30.400Z\"}}], \"cna\": {\"title\": \"Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"value\": \"Konstantin Kondratev, Evgeniy Druzhinin and Ilya Karpov of Rostelecom-Solar reported these vulnerabilities to Moxa.\"}], \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Moxa\", \"product\": \"NPort IAW5000A-I/O series firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"2.2\"}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Moxa has developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch.\\n\\nMoxa has also published a security advisory to provide more information.\"}], \"references\": [{\"url\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-121\", \"description\": \"CWE-121 Stack-based Buffer Overflow\"}]}], \"providerMetadata\": {\"orgId\": \"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6\", \"shortName\": \"icscert\", \"dateUpdated\": \"2022-04-01T22:17:14.000Z\"}, \"x_legacyV4Record\": {\"credit\": [{\"lang\": \"eng\", \"value\": \"Konstantin Kondratev, Evgeniy Druzhinin and Ilya Karpov of Rostelecom-Solar reported these vulnerabilities to Moxa.\"}], \"impact\": {\"cvss\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, \"source\": {\"discovery\": \"EXTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"2.2\", \"version_affected\": \"\u003c=\"}]}, \"product_name\": \"NPort IAW5000A-I/O series firmware\"}]}, \"vendor_name\": \"Moxa\"}]}}, \"solution\": [{\"lang\": \"en\", \"value\": \"Moxa has developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch.\\n\\nMoxa has also published a security advisory to provide more information.\"}], \"data_type\": \"CVE\", \"generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"references\": {\"reference_data\": [{\"url\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\", \"name\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\", \"name\": \"https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities\", \"refsource\": \"CONFIRM\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-121 Stack-based Buffer Overflow\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-32976\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow\", \"ASSIGNER\": \"ics-cert@hq.dhs.gov\"}}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-32976\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-16T16:33:12.438Z\", \"dateReserved\": \"2021-05-13T00:00:00.000Z\", \"assignerOrgId\": \"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6\", \"datePublished\": \"2022-04-01T22:17:14.000Z\", \"assignerShortName\": \"icscert\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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…