CVE-2026-32661 (GCVE-0-2026-32661)
Vulnerability from cvelistv5
Published
2026-05-13 05:15
Modified
2026-05-13 10:49
CWE
  • CWE-121 - Stack-based buffer overflow
Summary
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.
Impacted products
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-32661",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T10:44:26.447129Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T10:49:48.622Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "GUARDIANWALL MailSuite (On-premises version)",
          "vendor": "Canon Marketing Japan Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "Ver 1.4.00 to Ver 2.4.26"
            }
          ]
        },
        {
          "product": "GUARDIANWALL Mail Security Cloud (SaaS version)",
          "vendor": "Canon Marketing Japan Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "versions before the maintenance on April 30"
            },
            {
              "status": "affected",
              "version": "2026"
            }
          ]
        }
      ],
      "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\u0027s web service, arbitrary code may be executed when the product is configured to run pop3wallpasswd with grdnwww user privilege."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "Stack-based buffer overflow",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T07:24:43.527Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://security-support.canon-its.jp/info_and_news/show/804?site_domain=GUARDIANWALL"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN35567473/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2026-32661",
    "datePublished": "2026-05-13T05:15:15.435Z",
    "dateReserved": "2026-05-11T00:11:34.095Z",
    "dateUpdated": "2026-05-13T10:49:48.622Z",
    "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-2026-32661\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-13T10:44:26.447129Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-13T10:48:17.002Z\"}}], \"cna\": {\"metrics\": [{\"format\": \"CVSS\", \"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}, {\"format\": \"CVSS\", \"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 9.3, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Canon Marketing Japan Inc.\", \"product\": \"GUARDIANWALL MailSuite (On-premises version)\", \"versions\": [{\"status\": \"affected\", \"version\": \"Ver 1.4.00 to Ver 2.4.26\"}]}, {\"vendor\": \"Canon Marketing Japan Inc.\", \"product\": \"GUARDIANWALL Mail Security Cloud (SaaS version)\", \"versions\": [{\"status\": \"affected\", \"version\": \"versions before the maintenance on April 30\"}, {\"status\": \"affected\", \"version\": \"2026\"}]}], \"references\": [{\"url\": \"https://security-support.canon-its.jp/info_and_news/show/804?site_domain=GUARDIANWALL\"}, {\"url\": \"https://jvn.jp/en/jp/JVN35567473/\"}], \"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\u0027s web service, arbitrary code may be executed when the product is configured to run pop3wallpasswd with grdnwww user privilege.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-121\", \"description\": \"Stack-based buffer overflow\"}]}], \"providerMetadata\": {\"orgId\": \"ede6fdc4-6654-4307-a26d-3331c018e2ce\", \"shortName\": \"jpcert\", \"dateUpdated\": \"2026-05-13T07:24:43.527Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-32661\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-13T10:49:48.622Z\", \"dateReserved\": \"2026-05-11T00:11:34.095Z\", \"assignerOrgId\": \"ede6fdc4-6654-4307-a26d-3331c018e2ce\", \"datePublished\": \"2026-05-13T05:15:15.435Z\", \"assignerShortName\": \"jpcert\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

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…