{"api_version":"1","generated_at":"2026-04-22T23:31:00+00:00","cve":"CVE-2021-31344","urls":{"html":"https://cve.report/CVE-2021-31344","api":"https://cve.report/api/cve/CVE-2021-31344.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-31344","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-31344"},"summary":{"title":"CVE-2021-31344","description":"A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.4), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.4), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.19), Capital VSTAR (All versions with enabled Ethernet options), Desigo PXC00-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC00-U (All versions >= V2.3 and < V6.30.016), Desigo PXC001-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC100-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC12-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC128-U (All versions >= V2.3 and < V6.30.016), Desigo PXC200-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC36.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC50-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC64-U (All versions >= V2.3 and < V6.30.016), Desigo PXM20-E (All versions >= V2.3 and < V6.30.016), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.1), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)","state":"PUBLIC","assigner":"productcert@siemens.com","published_at":"2021-11-09 12:15:00","updated_at":"2022-05-20 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Nucleus RTOS-based APOGEE and TALON Products (Update A) Multiple Vulnerabilities (ICSA-21-315-07)"},{"cve":"CVE-2021-31344","qid":"590744","title":"Siemens Nucleus RTOS TCP/IP Stack Multiple Vulnerabilities (ICSA-21-313-03)"},{"cve":"CVE-2021-31344","qid":"590745","title":"Siemens Nucleus RTOS TCP/IP Stack Multiple Vulnerabilities (SSA-044112)"},{"cve":"CVE-2021-31344","qid":"590746","title":"Siemens Nucleus RTOS Transmission Control Protocol/Internet Protocol (TCP/IP) Stack Multiple Vulnerabilities (SSA-114589)"},{"cve":"CVE-2021-31344","qid":"590747","title":"Siemens Nucleus RTOS TCP/IP Stack Multiple Vulnerabilities (SSA-620288)"},{"cve":"CVE-2021-31344","qid":"590792","title":"Siemens Energy PLUSCONTROL 1st Gen Devices Multiple Vulnerabilities (SSA-845392)"},{"cve":"CVE-2021-31344","qid":"590795","title":"Siemens SIMOTICS CONNECT 400 Multiple Vulnerabilities (ICSA-22-069-02) (SSA-223353)"},{"cve":"CVE-2021-31344","qid":"590821","title":"WAGO NUCLEUS Transmission Control Protocol (TCP) Stack Multiple Vulnerabilities (VDE-2021-050)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"productcert@siemens.com","ID":"CVE-2021-31344","STATE":"PUBLIC"},"data_format":"MITRE","data_version":"4.0","data_type":"CVE","affects":{"vendor":{"vendor_data":[{"vendor_name":"Siemens","product":{"product_data":[{"product_name":"APOGEE MBC (PPC) (BACnet)","version":{"version_data":[{"version_value":"All versions"}]}},{"product_name":"APOGEE MBC (PPC) (P2 Ethernet)","version":{"version_data":[{"version_value":"All versions"}]}},{"product_name":"APOGEE MEC (PPC) (BACnet)","version":{"version_data":[{"version_value":"All versions"}]}},{"product_name":"APOGEE MEC (PPC) (P2 Ethernet)","version":{"version_data":[{"version_value":"All versions"}]}},{"product_name":"APOGEE PXC Compact (BACnet)","version":{"version_data":[{"version_value":"All versions < V3.5.4"}]}},{"product_name":"APOGEE PXC Compact (P2 Ethernet)","version":{"version_data":[{"version_value":"All versions < V2.8.19"}]}},{"product_name":"APOGEE PXC Modular (BACnet)","version":{"version_data":[{"version_value":"All versions < V3.5.4"}]}},{"product_name":"APOGEE PXC Modular (P2 Ethernet)","version":{"version_data":[{"version_value":"All versions < V2.8.19"}]}},{"product_name":"Capital VSTAR","version":{"version_data":[{"version_value":"All versions with enabled Ethernet options"}]}},{"product_name":"Desigo PXC00-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC00-U","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC001-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC100-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC12-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC128-U","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC200-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC22-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC22.1-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC36.1-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC50-E.D","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXC64-U","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Desigo PXM20-E","version":{"version_data":[{"version_value":"All versions >= V2.3 and < V6.30.016"}]}},{"product_name":"Nucleus NET","version":{"version_data":[{"version_value":"All versions"}]}},{"product_name":"Nucleus ReadyStart V3","version":{"version_data":[{"version_value":"All versions < V2017.02.4"}]}},{"product_name":"Nucleus ReadyStart V4","version":{"version_data":[{"version_value":"All versions < V4.1.1"}]}},{"product_name":"Nucleus Source Code","version":{"version_data":[{"version_value":"All versions"}]}},{"product_name":"PLUSCONTROL 1st Gen","version":{"version_data":[{"version_value":"All versions"}]}},{"product_name":"SIMOTICS CONNECT 400","version":{"version_data":[{"version_value":"All versions < V0.5.0.0"}]}},{"product_name":"TALON TC Compact (BACnet)","version":{"version_data":[{"version_value":"All versions < V3.5.4"}]}},{"product_name":"TALON TC Modular (BACnet)","version":{"version_data":[{"version_value":"All versions < V3.5.4"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')"}]}]},"description":{"description_data":[{"lang":"eng","value":"A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.4), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.4), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.19), Capital VSTAR (All versions with enabled Ethernet options), Desigo PXC00-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC00-U (All versions >= V2.3 and < V6.30.016), Desigo PXC001-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC100-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC12-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC128-U (All versions >= V2.3 and < V6.30.016), Desigo PXC200-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC36.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC50-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC64-U (All versions >= V2.3 and < V6.30.016), Desigo PXM20-E (All versions >= V2.3 and < V6.30.016), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.1), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)"}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf","name":"https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf"},{"refsource":"MISC","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf","name":"https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf"},{"refsource":"MISC","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf","name":"https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf"},{"refsource":"MISC","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-845392.pdf","name":"https://cert-portal.siemens.com/productcert/pdf/ssa-845392.pdf"},{"refsource":"MISC","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-223353.pdf","name":"https://cert-portal.siemens.com/productcert/pdf/ssa-223353.pdf"}]}},"nvd":{"publishedDate":"2021-11-09 12:15:00","lastModifiedDate":"2022-05-20 13:15:00","problem_types":["CWE-843"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"},"exploitabilityScore":3.9,"impactScore":1.4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:siemens:nucleus_source_code:*:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:siemens:capital_vstar:*:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:siemens:nucleus_readystart_v4:*:*:*:*:*:*:*:*","versionEndExcluding":"4.1.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*","versionEndExcluding":"2017.02.1","cpe_name":[]}]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:siemens:apogee_modular_building_controller_firmware:*:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:siemens:apogee_modular_building_controller:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:siemens:apogee_modular_equiment_controller_firmware:*:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:siemens:apogee_modular_equiment_controller:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:siemens:apogee_pxc_compact_firmware:*:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:siemens:apogee_pxc_compact:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:siemens:apogee_pxc_modular_firmware:*:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:siemens:apogee_pxc_modular:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:siemens:talon_tc_compact_firmware:*:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:siemens:talon_tc_compact:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:siemens:talon_tc_modular_firmware:*:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:siemens:talon_tc_modular:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"31344","Ordinal":"206625","Title":"CVE-2021-31344","CVE":"CVE-2021-31344","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"31344","Ordinal":"1","NoteData":"A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions), APOGEE PXC Compact (P2 Ethernet) (All versions), APOGEE PXC Modular (BACnet) (All versions), APOGEE PXC Modular (P2 Ethernet) (All versions), Capital VSTAR (All versions with enabled Ethernet options), Desigo PXC00-E.D (All versions >= V2.3), Desigo PXC00-U (All versions >= V2.3), Desigo PXC001-E.D (All versions >= V2.3), Desigo PXC100-E.D (All versions >= V2.3), Desigo PXC12-E.D (All versions >= V2.3), Desigo PXC128-U (All versions >= V2.3), Desigo PXC200-E.D (All versions >= V2.3), Desigo PXC22-E.D (All versions >= V2.3), Desigo PXC22.1-E.D (All versions >= V2.3), Desigo PXC36.1-E.D (All versions >= V2.3), Desigo PXC50-E.D (All versions >= V2.3), Desigo PXC64-U (All versions >= V2.3), Desigo PXM20-E (All versions >= V2.3), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.1), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions), TALON TC Compact (BACnet) (All versions), TALON TC Modular (BACnet) (All versions). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)","Type":"Description","Title":null},{"CveYear":"2021","CveId":"31344","Ordinal":"2","NoteData":"2021-11-09","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"31344","Ordinal":"3","NoteData":"2022-01-11","Type":"Other","Title":"Modified"}]}}}