{"id":"CVE-2016-2201","aliases":["EUVD-2016-3285","GHSA-4597-h46x-2mwj"],"status":"published","title":"Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay...","description":"Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay protection mechanism via packets on TCP port 102.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02917,"percentile":0.87108,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2016-02-08T16:00:00Z","modified":"2026-06-17T00:43:39Z","products":[{"vendor":"siemens","product":"simatic_s7-1500_cpu_firmware"}],"references":[{"url":"http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-253230.pdf","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1034954","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/83110","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-16-040-02","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-253230.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-2201"},{"url":"https://github.com/advisories/GHSA-4597-h46x-2mwj"}],"sources":{"cve":[{"id":"CVE-2016-2201","description":"Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay protection mechanism via packets on TCP port 102.","status":"published","published":"2016-02-08T16:00:00Z","modified":"2024-08-05T23:24:48.225Z","updated_at":"2026-11-02T14:33:33.07583Z"}],"euvd":[{"id":"EUVD-2016-3285","description":"Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay protection mechanism via packets on TCP port 102.","status":"published","published":"2016-02-08T16:00:00Z","modified":"2024-08-05T23:24:48Z","updated_at":"2026-11-03T02:22:54.125931Z"}],"ghsa":[{"id":"GHSA-4597-h46x-2mwj","title":"Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay...","description":"Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay protection mechanism via packets on TCP port 102.","status":"published","published":"2022-05-13T01:28:32Z","modified":"2023-02-01T05:07:47Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:50:36.63783Z"}],"nvd":[{"id":"CVE-2016-2201","description":"Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay protection mechanism via packets on TCP port 102.","status":"published","published":"2016-02-08T16:59:07.13Z","modified":"2026-06-17T00:43:39.59Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:21.143462Z"}]}}