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  "dataVersion": "5.1",
  "cveMetadata": {
    "cveId": "CVE-2026-80309",
    "assignerOrgId": "00000000-0000-4000-9000-000000000000",
    "requesterUserId": "00000000-0000-4000-9000-000000000000",
    "serial": 1,
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "00000000-0000-4000-9000-000000000000"
      },
      "title": "Stack-based buffer overflow in XML input parsing in EYE-SV600",
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "cweId": "CWE-121",
              "description": "CWE-121 Stack-based Buffer Overflow",
              "type": "CWE"
            }
          ]
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Sungrow",
          "product": "EYE-SV600 (EyeM4 logger)",
          "packageName": "webserver.so",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThanOrEqual": "002.00.P029B001",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The EYE-SV600 (EyeM4 logger) does not validate the length of a field in attacker-supplied XML input before copying it into a fixed-size buffer, allowing an authenticated attacker to reliably crash the service (denial of service) and, depending on exploitation, potentially gain control of program execution.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "The EYE-SV600 (EyeM4 logger) does not validate the length of a field in attacker-supplied XML input before copying it into a fixed-size buffer, allowing an authenticated attacker to reliably crash the service (denial of service) and, depending on exploitation, potentially gain control of program execution."
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://csirt.divd.nl/CVE-2026-80309",
          "tags": [
            "third-party-advisory"
          ]
        }
      ],
      "metrics": [
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          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ],
          "cvssV4_0": {
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "HIGH",
            "userInteraction": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "vulnAvailabilityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "exploitMaturity": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "valueDensity": "NOT_DEFINED",
            "vulnerabilityResponseEffort": "NOT_DEFINED",
            "providerUrgency": "NOT_DEFINED",
            "version": "4.0",
            "baseSeverity": "MEDIUM",
            "baseScore": 6.9,
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Victor Pasman (DIVD)",
          "type": "analyst"
        },
        {
          "lang": "en",
          "value": "Ian van der Wurff (Tozetta)",
          "type": "finder"
        }
      ],
      "source": {
        "advisory": "CVE-2026-80309",
        "discovery": "UNKNOWN"
      },
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}