{"id":"CVE-2026-32661","state":"PUBLISHED","title":"Stack-based buffer overflow vulnerability exists in GUARDIANWALL MailSuite and GUARDIANWALL Mail Security Cloud (SaaS version). If a remote attacker sends a specially crafted reque","description":"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.","publishedAt":"2026-05-13T05:15:15.435Z","updatedAt":"2026-05-13T10:49:48.622Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"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","source":"jpcert"},"assigner":"jpcert","products":["Canon Marketing Japan Inc. GUARDIANWALL MailSuite (On-premises version)","Canon Marketing Japan Inc. GUARDIANWALL Mail Security Cloud (SaaS version)"],"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"}]}],"references":["https://security-support.canon-its.jp/info_and_news/show/804?site_domain=GUARDIANWALL","https://jvn.jp/en/jp/JVN35567473/"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32661.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32661","state":"PUBLISHED","datePublished":"2026-05-13T05:15:15.435Z","dateUpdated":"2026-05-13T10:49:48.622Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2026-05-11T00:11:34.095Z"},"containers":{"cna":{"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"}]}],"references":[{"url":"https://security-support.canon-its.jp/info_and_news/show/804?site_domain=GUARDIANWALL"},{"url":"https://jvn.jp/en/jp/JVN35567473/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_0":{"version":"3.0","baseSeverity":"CRITICAL","baseScore":9.8,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}},{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseSeverity":"CRITICAL","baseScore":9.3,"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"Stack-based buffer overflow","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"jpcert","orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateUpdated":"2026-05-13T07:24:43.527Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T10:44:26.447129Z","id":"CVE-2026-32661","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-13T10:49:48.622Z"}}]}}}