jvndb-2026-000072
Vulnerability from jvndb
Published
2026-05-13 15:41
Modified
2026-05-15 15:37
Severity ?
9.8 (Critical) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
GUARDIANWALL MailSuite vulnerable to stack-based buffer overflow
Details
GUARDIANWALL MailSuite provided by Canon Marketing Japan Inc. contains the following vulnerability.<ul><li>Stack-based buffer overflow in pop3wallpasswd command (CWE-121) - CVE-2026-32661</li><li>This can be exploited only when the product is configured to run pop3wallpasswd with grdnwww user privilege</li></ul>The developer states that attacks exploiting the vulnerability has been observed in GUARDIANWALL MailSuite (On-premises version). Canon Marketing Japan Inc. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN. JPCERT/CC and Canon Marketing Japan Inc. coordinated under the Information Security Early Warning Partnership.
References
Impacted products
Show details on JVN DB website

To clipboard 

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000072.html",
  "dc:date": "2026-05-15T15:37+09:00",
  "dcterms:issued": "2026-05-13T15:41+09:00",
  "dcterms:modified": "2026-05-15T15:37+09:00",
  "description": "GUARDIANWALL MailSuite provided by Canon Marketing Japan Inc. contains the following vulnerability.\u003cul\u003e\u003cli\u003eStack-based buffer overflow in pop3wallpasswd command (CWE-121) - CVE-2026-32661\u003c/li\u003e\u003cli\u003eThis can be exploited only when the product is configured to run pop3wallpasswd with grdnwww user privilege\u003c/li\u003e\u003c/ul\u003eThe developer states that attacks exploiting the vulnerability has been observed in GUARDIANWALL MailSuite (On-premises version).\r\n\r\nCanon Marketing Japan Inc. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN.\r\nJPCERT/CC and Canon Marketing Japan Inc. coordinated under the Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000072.html",
  "sec:cpe": [
    {
      "#text": "cpe:/a:misc:canon_marketing_japan_guardianwall_mailsuite",
      "@product": "GUARDIANWALL MailSuite",
      "@vendor": "Canon Marketing Japan Inc.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:misc:canon_marketing_japan_guardianwall_mail_security_cloud",
      "@product": "GUARDIANWALL Mail Security Cloud",
      "@vendor": "Canon Marketing Japan Inc.",
      "@version": "2.2"
    }
  ],
  "sec:cvss": {
    "@score": "9.8",
    "@severity": "Critical",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000072",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN35567473/index.html",
      "@id": "JVN#35567473",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-32661",
      "@id": "CVE-2026-32661",
      "@source": "CVE"
    },
    {
      "#text": "https://www.jpcert.or.jp/at/2026/at260013.html",
      "@id": "JPCERT-AT-2026-0013",
      "@source": "JPCERT AT"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-119",
      "@title": "Buffer Errors(CWE-119)"
    }
  ],
  "title": "GUARDIANWALL MailSuite vulnerable to stack-based buffer overflow"
}


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