CVSS 3.1
5.9 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2020-28391
Medium (5.9) in siemens. EPSS 1.1% chance of exploitation in the next 30 days.
A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0), SCALANCE X-200RNA switch family (All versions < 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
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-321, CWE-798
- Published
- Modified
- Record from
- the NVD, synced
Affected
- siemens:scalance_x200-4pirt_firmware
- siemens:scalance_x201-3pirt_firmware
- siemens:scalance_x202-2irt_firmware
- siemens:scalance_x202-2pirt_firmware
- siemens:scalance_x202-2pirt_siplus_net_firmware
- siemens:scalance_x204irt_firmware
- siemens:scalance_x307-3_firmware
- siemens:scalance_x307-3ld_firmware
- siemens:scalance_x308-2_firmware
- siemens:scalance_x308-2ld_firmware
- siemens:scalance_x308-2lh\+_firmware
- siemens:scalance_x308-2lh_firmware
- siemens:scalance_x308-2m_firmware
- siemens:scalance_x308-2m_ts_firmware
- siemens:scalance_x310_firmware
- siemens:scalance_x310fe_firmware
- siemens:scalance_x320-1fe_firmware
- siemens:scalance_x320-3ldfe_firmware
- siemens:scalance_xb205-3_firmware
- siemens:scalance_xb205-3ld_firmware
- siemens:scalance_xb208_firmware
- siemens:scalance_xb213-3_firmware
- siemens:scalance_xb213-3ld_firmware
- siemens:scalance_xb216_firmware
- siemens:scalance_xc206-2_firmware
- siemens:scalance_xc206-2g_poe__firmware
- siemens:scalance_xc206-2g_poe_eec_firmware
- siemens:scalance_xc206-2sfp_eec_firmware
- siemens:scalance_xc206-2sfp_firmware
- siemens:scalance_xc206-2sfp_g_\(e\/ip\)_firmware
- siemens:scalance_xc206-2sfp_g_eec_firmware
- siemens:scalance_xc206-2sfp_g_firmware
- siemens:scalance_xc208_firmware
- siemens:scalance_xc208eec_firmware
- siemens:scalance_xc208g_\(e\/ip\)_firmware
- siemens:scalance_xc208g_eec_firmware
- siemens:scalance_xc208g_firmware
- siemens:scalance_xc208g_poe_firmware
- siemens:scalance_xc216-4c_firmware
- siemens:scalance_xc216-4c_g_\(e\/ip\)_firmware
- siemens:scalance_xc216-4c_g_eec_firmware
- siemens:scalance_xc216-4c_g_firmware
- siemens:scalance_xc216_firmware
- siemens:scalance_xc216eec_firmware
- siemens:scalance_xc224-4c_g_\(e\/ip\)_firmware
- siemens:scalance_xc224-4c_g__firmware
- siemens:scalance_xc224-4c_g_eec_firmware
- siemens:scalance_xc224__firmware
- siemens:scalance_xf201-3p_irt_firmware
- siemens:scalance_xf202-2p_irt_firmware