{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-32661",
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "dateUpdated": "2026-05-13T05:15:15.435Z",
    "dateReserved": "2026-05-11T00:11:34.095Z",
    "datePublished": "2026-05-13T05:15:15.435Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert",
        "dateUpdated": "2026-05-13T05:15:15.435Z"
      },
      "descriptions": [
        {
          "lang": "en",
          "value": "Stack-based buffer overflow vulnerability exists in GUARDIANWALL MailSuite and GUARDIANWALL Mail Security Cloud (SaaS version). If a remote attacker sends a specially crafted request to the product's web service, arbitrary code may be executed when the product is configured to run pop3wallpasswd with grdnwww user privilege."
        }
      ],
      "affected": [
        {
          "vendor": "Canon Marketing Japan Inc.",
          "product": "GUARDIANWALL MailSuite (On-premises version)",
          "versions": [
            {
              "version": "Ver 1.4.00 to Ver 2.4.26",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Canon Marketing Japan Inc.",
          "product": "GUARDIANWALL Mail Security Cloud (SaaS version)",
          "versions": [
            {
              "version": "versions before the maintenance on April 30",
              "status": "affected"
            },
            {
              "version": "2026",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en-US",
              "description": "Stack-based buffer overflow",
              "cweId": "CWE-121",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://jvn.jp/en/jp/JVN35567473/"
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ],
          "cvssV3_0": {
            "version": "3.0",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL"
          }
        },
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ]
    }
  }
}