{"id":"CVE-2020-28391","aliases":["EUVD-2020-20850","GHSA-pffp-ch4h-4669"],"status":"published","title":"A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) ...","description":"A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions \u003c V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions \u003c V5.5.0), SCALANCE X-200RNA switch family (All versions \u003c V3.2.7). Devices create a new unique key upon factory reset, except when used with C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key shipped with the firmware-image. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01132,"percentile":0.66715,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-321","CWE-798"],"published":"2021-01-12T00:00:00Z","modified":"2026-06-17T03:10:22Z","products":[{"vendor":"siemens","product":"scalance x-200 switch family (incl. siplus net variants)"},{"vendor":"siemens","product":"scalance x-200irt switch family (incl. siplus net variants)"},{"vendor":"siemens","product":"scalance x-200rna switch family"},{"vendor":"siemens","product":"scalance_x200-4pirt_firmware"},{"vendor":"siemens","product":"scalance_x201-3pirt_firmware"},{"vendor":"siemens","product":"scalance_x202-2irt_firmware"},{"vendor":"siemens","product":"scalance_x202-2pirt_firmware"},{"vendor":"siemens","product":"scalance_x202-2pirt_siplus_net_firmware"},{"vendor":"siemens","product":"scalance_x204irt_firmware"},{"vendor":"siemens","product":"scalance_x307-3_firmware"},{"vendor":"siemens","product":"scalance_x307-3ld_firmware"},{"vendor":"siemens","product":"scalance_x308-2_firmware"},{"vendor":"siemens","product":"scalance_x308-2ld_firmware"},{"vendor":"siemens","product":"scalance_x308-2lh\\+_firmware"},{"vendor":"siemens","product":"scalance_x308-2lh_firmware"},{"vendor":"siemens","product":"scalance_x308-2m_firmware"},{"vendor":"siemens","product":"scalance_x308-2m_ts_firmware"},{"vendor":"siemens","product":"scalance_x310_firmware"},{"vendor":"siemens","product":"scalance_x310fe_firmware"},{"vendor":"siemens","product":"scalance_x320-1fe_firmware"},{"vendor":"siemens","product":"scalance_x320-3ldfe_firmware"},{"vendor":"siemens","product":"scalance_xb205-3_firmware"},{"vendor":"siemens","product":"scalance_xb205-3ld_firmware"},{"vendor":"siemens","product":"scalance_xb208_firmware"},{"vendor":"siemens","product":"scalance_xb213-3_firmware"},{"vendor":"siemens","product":"scalance_xb213-3ld_firmware"},{"vendor":"siemens","product":"scalance_xb216_firmware"},{"vendor":"siemens","product":"scalance_xc206-2_firmware"},{"vendor":"siemens","product":"scalance_xc206-2g_poe__firmware"},{"vendor":"siemens","product":"scalance_xc206-2g_poe_eec_firmware"},{"vendor":"siemens","product":"scalance_xc206-2sfp_eec_firmware"},{"vendor":"siemens","product":"scalance_xc206-2sfp_firmware"},{"vendor":"siemens","product":"scalance_xc206-2sfp_g_\\(e\\/ip\\)_firmware"},{"vendor":"siemens","product":"scalance_xc206-2sfp_g_eec_firmware"},{"vendor":"siemens","product":"scalance_xc206-2sfp_g_firmware"},{"vendor":"siemens","product":"scalance_xc208_firmware"},{"vendor":"siemens","product":"scalance_xc208eec_firmware"},{"vendor":"siemens","product":"scalance_xc208g_\\(e\\/ip\\)_firmware"},{"vendor":"siemens","product":"scalance_xc208g_eec_firmware"},{"vendor":"siemens","product":"scalance_xc208g_firmware"},{"vendor":"siemens","product":"scalance_xc208g_poe_firmware"},{"vendor":"siemens","product":"scalance_xc216-4c_firmware"},{"vendor":"siemens","product":"scalance_xc216-4c_g_\\(e\\/ip\\)_firmware"},{"vendor":"siemens","product":"scalance_xc216-4c_g_eec_firmware"},{"vendor":"siemens","product":"scalance_xc216-4c_g_firmware"},{"vendor":"siemens","product":"scalance_xc216_firmware"},{"vendor":"siemens","product":"scalance_xc216eec_firmware"},{"vendor":"siemens","product":"scalance_xc224-4c_g_\\(e\\/ip\\)_firmware"},{"vendor":"siemens","product":"scalance_xc224-4c_g__firmware"},{"vendor":"siemens","product":"scalance_xc224-4c_g_eec_firmware"},{"vendor":"siemens","product":"scalance_xc224__firmware"},{"vendor":"siemens","product":"scalance_xf201-3p_irt_firmware"},{"vendor":"siemens","product":"scalance_xf202-2p_irt_firmware"},{"vendor":"siemens","product":"scalance_xf204-2_firmware"},{"vendor":"siemens","product":"scalance_xf204-2ba_dna_firmware"},{"vendor":"siemens","product":"scalance_xf204-2ba_irt_firmware"},{"vendor":"siemens","product":"scalance_xf204_dna_firmware"},{"vendor":"siemens","product":"scalance_xf204_firmware"},{"vendor":"siemens","product":"scalance_xf204irt_firmware"},{"vendor":"siemens","product":"scalance_xf206-1_firmware"},{"vendor":"siemens","product":"scalance_xf208_firmware"},{"vendor":"siemens","product":"scalance_xp208_\\(eip\\)_firmware"},{"vendor":"siemens","product":"scalance_xp208_firmware"},{"vendor":"siemens","product":"scalance_xp208eec_firmware"},{"vendor":"siemens","product":"scalance_xp208poe_eec_firmware"},{"vendor":"siemens","product":"scalance_xp216_\\(eip\\)_firmware"},{"vendor":"siemens","product":"scalance_xp216_firmware"},{"vendor":"siemens","product":"scalance_xp216eec_firmware"},{"vendor":"siemens","product":"scalance_xp216poe_eec_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf","tags":["x_transferred","Vendor Advisory"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02","tags":["x_transferred","Third Party Advisory","US Government Resource","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28391"},{"url":"https://github.com/advisories/GHSA-pffp-ch4h-4669"}],"sources":{"cve":[{"id":"CVE-2020-28391","description":"A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions \u003c V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions \u003c V5.5.0), SCALANCE X-200RNA switch family (All versions \u003c V3.2.7). Devices create a new unique key upon factory reset, except when used with C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key shipped with the firmware-image. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.","status":"published","published":"2021-01-12T00:00:00Z","modified":"2024-08-04T16:33:59.106Z","cwes":["CWE-321"],"updated_at":"2026-11-02T14:35:57.017407Z"}],"euvd":[{"id":"EUVD-2020-20850","description":"A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions \u003c V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions \u003c V5.5.0), SCALANCE X-200RNA switch family (All versions \u003c V3.2.7). Devices create a new unique key upon factory reset, except when used with C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key shipped with the firmware-image. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.","status":"published","published":"2021-01-12T00:00:00Z","modified":"2024-08-04T16:33:59Z","updated_at":"2026-11-03T03:07:10.123634Z"}],"ghsa":[{"id":"GHSA-pffp-ch4h-4669","title":"A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) ...","description":"A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All Versions), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions). Devices create a new unique key upon factory reset, except when used with C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key shipped with the firmware-image. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.","status":"published","published":"2022-05-24T17:38:36Z","modified":"2023-01-29T05:05:35Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-321","CWE-798"],"updated_at":"2026-11-02T14:45:49.842411Z"}],"nvd":[{"id":"CVE-2020-28391","description":"A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions \u003c V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions \u003c V5.5.0), SCALANCE X-200RNA switch family (All versions \u003c V3.2.7). Devices create a new unique key upon factory reset, except when used with C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key shipped with the firmware-image. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.","status":"published","published":"2021-01-12T21:15:18.12Z","modified":"2026-06-17T03:10:22.127Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-321","CWE-798"],"updated_at":"2026-11-02T14:06:28.892872Z"}]}}