{"id":"CVE-2018-0683","aliases":["EUVD-2018-1493","GHSA-6r9h-4q37-4f2p"],"status":"published","title":"Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun...","description":"Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier) allows remote attackers to execute arbitrary code or cause a denial-of-service (DoS) condition via Cookie data.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.03584,"percentile":0.89484,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2018-11-15T15:00:00Z","modified":"2026-06-17T01:31:26Z","products":[{"vendor":"neo","product":"debun_imap"},{"vendor":"neo","product":"debun_pop"},{"vendor":"neojapan inc.","product":"denbun by neojapan inc. (denbun pop version v3.3p r4.0 and earlier, denbun imap version v3.3i r4.0 and earlier)"}],"references":[{"url":"https://www.denbun.com/en/pop/support/security/181003.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://jvn.jp/en/jp/JVN00344155/index.html","tags":["third-party-advisory","x_refsource_JVN","x_transferred","Third Party Advisory"]},{"url":"https://www.denbun.com/en/imap/support/security/181003.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-0683"},{"url":"https://github.com/advisories/GHSA-6r9h-4q37-4f2p"}],"sources":{"cve":[{"id":"CVE-2018-0683","description":"Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier) allows remote attackers to execute arbitrary code or cause a denial-of-service (DoS) condition via Cookie data.","status":"published","published":"2018-11-15T15:00:00Z","modified":"2024-08-05T03:35:49.007Z","updated_at":"2026-11-02T14:35:12.160284Z"}],"euvd":[{"id":"EUVD-2018-1493","description":"Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier) allows remote attackers to execute arbitrary code or cause a denial-of-service (DoS) condition via Cookie data.","status":"published","published":"2018-11-15T15:00:00Z","modified":"2024-08-05T03:35:49Z","updated_at":"2026-11-03T02:40:17.442322Z"}],"ghsa":[{"id":"GHSA-6r9h-4q37-4f2p","title":"Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun...","description":"Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier) allows remote attackers to execute arbitrary code or cause a denial-of-service (DoS) condition via Cookie data.","status":"published","published":"2022-05-14T01:48:27Z","modified":"2023-02-02T05:04:43Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:51:56.457493Z"}],"nvd":[{"id":"CVE-2018-0683","description":"Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier) allows remote attackers to execute arbitrary code or cause a denial-of-service (DoS) condition via Cookie data.","status":"published","published":"2018-11-15T15:29:00.537Z","modified":"2026-06-17T01:31:26.853Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:04:48.987926Z"}]}}