High severity7.5NVD Advisory· Published Jul 13, 2021· Updated Jun 17, 2026
CVE-2020-28400
CVE-2020-28400
Description
Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3690+ 6 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xr500_firmware:*:*:*:*:*:*:*:*range: <6.3.1
- (no CPE)range: 0
0+ 5 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xr324-4m_eec_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xr324-4m_poe_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xr324-4m_poe_ts_firmware:*:*:*:*:*:*:*:*
- Range: All Versions >= V2.7
- Range: All Versions >= V2.7
- Range: 0
0+ 3 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 3 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 2 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 2 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 8 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 11 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_x308-2m_firmware:*:*:*:*:*:*:*:*
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 2 more
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xb-200_firmware:*:*:*:*:*:*:*:*range: <4.3
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 5 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 3 more
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xm400_firmware:*:*:*:*:*:*:*:*range: <6.3.1
- (no CPE)range: 0
- (no CPE)range: 0
0+ 6 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xf204-2ba_irt_firmware:*:*:*:*:*:*:*:*range: <5.5.0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 9 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: All Versions >= V2.7
0+ 8 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 18 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 4 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xf204-2_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_xf206-1_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_xf208_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_xf-200ba_firmware:*:*:*:*:*:*:*:*Range: <4.3
- cpe:2.3:o:siemens:scalance_xp-200_firmware:*:*:*:*:*:*:*:*Range: <4.3
cpe:2.3:o:siemens:scalance_xr324-12m_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:siemens:scalance_xr324-12m_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xr324-12m_ts_firmware:*:*:*:*:*:*:*:*
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xr-300wg_firmware:*:*:*:*:*:*:*:*Range: <4.3
- cpe:2.3:o:siemens:simatic_cfu_pa_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ie\/pb-link_v3_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:simatic_ie\/pb-link_v3_firmware:*:*:*:*:*:*:*:*
- (no CPE)range: V3
- cpe:2.3:o:siemens:simatic_mv500_firmware:*:*:*:*:*:*:*:*Range: <3.0
- cpe:2.3:o:siemens:simatic_net_cm_1542-1_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_net_cp1616_firmware:*:*:*:*:*:*:*:*Range: <=2.7
- cpe:2.3:o:siemens:simatic_net_cp1604_firmware:*:*:*:*:*:*:*:*Range: <=2.7
- cpe:2.3:o:siemens:simatic_net_cp1626_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_net_dk-16xx_pn_io:*:*:*:*:*:*:*:*Range: <=2.7
cpe:2.3:o:siemens:simatic_power_line_booster_plb_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:simatic_power_line_booster_plb_firmware:*:*:*:*:*:*:*:*
- (no CPE)range: 0
cpe:2.3:o:siemens:simatic_profinet_driver_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:simatic_profinet_driver_firmware:*:*:*:*:*:*:*:*range: <2.3
- (no CPE)range: 0
- cpe:2.3:o:siemens:simatic_s7-1200_firmware:*:*:*:*:*:*:*:*Range: <4.5
- cpe:2.3:o:siemens:simocode_prov_ethernet\/ip_firmware:*:*:*:*:*:*:*:*Range: <1.1.3
- cpe:2.3:o:siemens:simocode_prov_profinet_firmware:*:*:*:*:*:*:*:*Range: <2.1.3
cpe:2.3:o:siemens:softnet-ie_pnio_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:softnet-ie_pnio_firmware:*:*:*:*:*:*:*:*
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_xf202-2p_irt_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_xf204_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
0+ 1 more
- (no CPE)range: 0
- cpe:2.3:o:siemens:dk_standard_ethernet_controller_evaluation_kit_firmware:*:*:*:*:*:*:*:*
- Range: 0
0+ 3 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 11 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_x306-1ldfe_firmware:*:*:*:*:*:*:*:*
0+ 1 more
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_x320-1fe_firmware:*:*:*:*:*:*:*:*
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- cpe:2.3:o:siemens:ek-ertec_200_evaulation_kit_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:ek-ertec_200p_evaluation_kit_firmware:*:*:*:*:*:*:*:*Range: <4.7
- cpe:2.3:o:siemens:ruggedcom_rm1224_firmware:*:*:*:*:*:*:*:*Range: <6.4
- cpe:2.3:o:siemens:scalance_m-800_firmware:*:*:*:*:*:*:*:*Range: <6.4
cpe:2.3:o:siemens:scalance_s615_firmware:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:siemens:scalance_s615_firmware:*:*:*:*:*:*:*:*range: <6.4
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_w700_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_w1700_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x201-3p_irt_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_x201-3p_irt_pro_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_x202-2p_irt_pro_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_x204_irt_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_x204-2_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x204-2fm_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x204-2ld_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x204-2ld_ts_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x204-2ts_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x206-1_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
cpe:2.3:o:siemens:scalance_x206-1ld_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:scalance_x206-1ld_firmware:*:*:*:*:*:*:*:*range: <5.2.5
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_x208_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x208pro_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x200-4_p_irt_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_x212-2_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
cpe:2.3:o:siemens:scalance_x212-2ld_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:scalance_x212-2ld_firmware:*:*:*:*:*:*:*:*range: <5.2.5
- (no CPE)range: 0
- cpe:2.3:o:siemens:scalance_x216_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x224_firmware:*:*:*:*:*:*:*:*Range: <5.2.5
- cpe:2.3:o:siemens:scalance_x302-7eec_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x304-2fe_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x307-2eec_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x307-3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x307-3ld_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x308-2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x308-2ld_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x308-2lh_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:scalance_x308-2lh_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x308-2lh\+_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x308-2m_poe_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x308-2m_ts_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x310_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x310fe_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x320-3ldfe_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xc-200_firmware:*:*:*:*:*:*:*:*Range: <4.3
- cpe:2.3:o:siemens:scalance_xf201-3p_irt_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_x202-2_irt_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_xf204_irt_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
- cpe:2.3:o:siemens:scalance_x204_irt_pro_firmware:*:*:*:*:*:*:*:*Range: <5.5.0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 6 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 2 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 5 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
- Siemens/Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200v5Range: 0
- Siemens/Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200Pv5Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Siemens/SCALANCE X307-2 EEC (24V, coated)v5Range: 0
- Siemens/SCALANCE X307-2 EEC (24V)v5Range: 0
- Siemens/SCALANCE X307-2 EEC (2x 24V, coated)v5Range: 0
- Siemens/SCALANCE X307-2 EEC (2x 24V)v5Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Range: 0
- Siemens/SCALANCE XR324-12M (230V, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-12M (230V, ports on rear)v5Range: 0
- Siemens/SCALANCE XR324-12M (24V, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-12M (24V, ports on rear)v5Range: 0
- Siemens/SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on rear)v5Range: 0
- Siemens/SCALANCE XR324-4M EEC (24V, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-4M EEC (24V, ports on rear)v5Range: 0
- Range: 0
- Range: 0
- Siemens/SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on rear)v5Range: 0
- Siemens/SCALANCE XR324-4M EEC (2x 24V, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-4M EEC (2x 24V, ports on rear)v5Range: 0
- Siemens/SCALANCE XR324-4M PoE (230V, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-4M PoE (230V, ports on rear)v5Range: 0
- Siemens/SCALANCE XR324-4M PoE (24V, ports on front)v5Range: 0
- Siemens/SCALANCE XR324-4M PoE (24V, ports on rear)v5Range: 0
- Siemens/SCALANCE XR324-4M PoE TS (24V, ports on front)v5Range: 0
- Siemens/SCALANCE XR526-8C, 1x230V (L3 int.)v5Range: 0
- Siemens/SCALANCE XR526-8C, 2x230V (L3 int.)v5Range: 0
- Range: 0
- Range: 0
- Siemens/SIMOCODE pro V EIP 110-240V AC/DCv5Range: 0
- Siemens/SIMOCODE pro V EIP 24V DCv5Range: 0
- Siemens/SIMOCODE pro V PN 110-240V AC/DCv5Range: 0
- Siemens/SIMOCODE pro V PN 24V DCv5Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Siemens/SIPLUS SIMOCODE pro V basic unit 2v5Range: 0
- Range: 0
- Range: 0
Patches
Vulnerability mechanics
References
3- cert-portal.siemens.com/productcert/pdf/ssa-599968.pdfnvdPatchVendor Advisory
- us-cert.cisa.gov/ics/advisories/icsa-21-194-03nvdThird Party AdvisoryUS Government Resource
- cert-portal.siemens.com/productcert/html/ssa-599968.htmlnvd
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