{"id":"CVE-2014-2735","aliases":["EUVD-2014-2763","GHSA-wx8f-7wmv-f3cq"],"status":"published","title":"WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches...","description":"WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00793,"percentile":0.5659,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2014-04-21T14:00:00Z","modified":"2026-06-17T00:07:05Z","products":[{"vendor":"winscp","product":"winscp"}],"references":[{"url":"http://www.securityfocus.com/archive/1/531847/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://winscp.net/eng/docs/history","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://winscp.net/tracker/show_bug.cgi?id=1152","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-2735"},{"url":"https://github.com/advisories/GHSA-wx8f-7wmv-f3cq"}],"sources":{"cve":[{"id":"CVE-2014-2735","description":"WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2014-04-21T14:00:00Z","modified":"2024-08-06T10:21:36.023Z","updated_at":"2026-11-02T14:33:43.566796Z"}],"euvd":[{"id":"EUVD-2014-2763","description":"WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2014-04-21T14:00:00Z","modified":"2024-08-06T10:21:36Z","updated_at":"2026-11-03T01:57:13.484356Z"}],"ghsa":[{"id":"GHSA-wx8f-7wmv-f3cq","title":"WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches...","description":"WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2022-05-14T02:52:47Z","modified":"2023-02-02T05:06:47Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:52:22.08324Z"}],"nvd":[{"id":"CVE-2014-2735","description":"WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2014-04-22T13:06:29.853Z","modified":"2026-06-17T00:07:05.06Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:54.082915Z"}]}}