{"id":"CVE-2011-4040","aliases":["EUVD-2011-3992","GHSA-j834-vhc7-49w9"],"status":"published","title":"Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute...","description":"Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.65262,"percentile":0.99261,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2011-11-21T11:00:00Z","modified":"2026-06-16T23:34:19Z","exploits":[{"source":"exploitdb","id":"EDB-18057","title":"NJStar Communicator 3.00 - MiniSMTP Server Remote (Metasploit)","type":"remote","platform":"windows","date":"2011-10-31","verified":true,"url":"https://www.exploit-db.com/exploits/18057"},{"source":"exploitdb","id":"EDB-18196","title":"NJStar Communicator MiniSmtp - Buffer Overflow (ASLR Bypass)","type":"dos","platform":"windows","date":"2011-12-03","url":"https://www.exploit-db.com/exploits/18196"},{"source":"metasploit","id":"exploit/windows/smtp/njstar_smtp_bof","title":"NJStar Communicator 3.00 MiniSMTP Buffer Overflow","type":"exploit","platform":"Windows","date":"2011-10-31","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/smtp/njstar_smtp_bof"}],"products":[{"vendor":"njstar","product":"njstar_communicator"}],"references":[{"url":"http://www.kb.cert.org/vuls/id/819630","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4040"},{"url":"https://github.com/advisories/GHSA-j834-vhc7-49w9"}],"sources":{"cve":[{"id":"CVE-2011-4040","description":"Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.","status":"published","published":"2011-11-21T11:00:00Z","modified":"2024-09-17T03:48:10.725Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2011-3992","description":"Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.","status":"published","published":"2011-11-21T11:00:00Z","modified":"2024-09-17T03:48:10Z","updated_at":"2026-11-03T00:28:28.52027Z"}],"ghsa":[{"id":"GHSA-j834-vhc7-49w9","title":"Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute...","description":"Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.","status":"published","published":"2022-05-17T05:36:47Z","modified":"2023-01-28T05:04:23Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:44:09.520474Z"}],"nvd":[{"id":"CVE-2011-4040","description":"Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.","status":"published","published":"2011-11-21T11:55:03.227Z","modified":"2026-06-16T23:34:19.927Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:02:10.769216Z"}]}}