{"id":"CVE-2014-2257","aliases":["EUVD-2014-2296","GHSA-pj6m-28cc-c3ww"],"status":"published","title":"Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to...","description":"Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service (defect-mode transition) via crafted ISO-TSAP packets.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03464,"percentile":0.89136,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2014-03-16T10:00:00Z","modified":"2026-06-17T00:06:18Z","products":[{"vendor":"siemens","product":"simatic_s7-1500_cpu_firmware"}],"references":[{"url":"http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-456423.pdf","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://ics-cert.us-cert.gov/advisories/ICSA-14-073-01","tags":["x_refsource_MISC","x_transferred","US Government Resource"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-2257"},{"url":"https://github.com/advisories/GHSA-pj6m-28cc-c3ww"}],"sources":{"cve":[{"id":"CVE-2014-2257","description":"Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service (defect-mode transition) via crafted ISO-TSAP packets.","status":"published","published":"2014-03-16T10:00:00Z","modified":"2024-08-06T10:06:00.259Z","updated_at":"2026-11-02T14:33:44.23164Z"}],"euvd":[{"id":"EUVD-2014-2296","description":"Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service (defect-mode transition) via crafted ISO-TSAP packets.","status":"published","published":"2014-03-16T10:00:00Z","modified":"2024-08-06T10:06:00Z","updated_at":"2026-11-03T01:57:14.847023Z"}],"ghsa":[{"id":"GHSA-pj6m-28cc-c3ww","title":"Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to...","description":"Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service (defect-mode transition) via crafted ISO-TSAP packets.","status":"published","published":"2022-05-13T01:28:32Z","modified":"2023-02-01T05:07:41Z","updated_at":"2026-11-02T14:50:35.618049Z"}],"nvd":[{"id":"CVE-2014-2257","description":"Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service (defect-mode transition) via crafted ISO-TSAP packets.","status":"published","published":"2014-03-16T14:06:45.943Z","modified":"2026-06-17T00:06:18.5Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:02:53.710973Z"}]}}