{"cve":"CVE-2019-13939","nvd":{"published":"2020-01-16T16:15:16.277","modified":"2026-06-17T02:17:27.107","status":"Modified","description":"A vulnerability has been identified in APOGEE MEC/MBC/PXC (P2) (All versions < V2.8.2), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet) (All versions >= V2.8.2 < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.3), APOGEE PXC Modular (P2 Ethernet) (All versions >= V2.8.2 < V2.8.19), Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Desigo PXC00-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC00-U (All versions >= V2.3x and < V6.00.327), Desigo PXC001-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC100-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC12-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC128-U (All versions >= V2.3x and < V6.00.327), Desigo PXC200-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC22-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC22.1-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC36.1-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC50-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC64-U (All versions >= V2.3x and < V6.00.327), Desigo PXM20-E (All versions >= V2.3 < V6.0.327), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus Source Code (All versions), SIMOTICS CONNECT 400 (All versions < V0.3.0.330), TALON TC Compact (BACnet) (All versions < V3.5.3), TALON TC Modular (BACnet) (All versions < V3.5.3). By sending specially crafted DHCP packets to a device where the DHCP client is enabled, an attacker could change the IP address of the device to an invalid value.","cvss_v4":{"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","score":7.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","score":7.1},"cwes":["CWE-20"],"references":["https://cert-portal.siemens.com/productcert/html/ssa-162506.html","https://cert-portal.siemens.com/productcert/html/ssa-434032.html","https://cert-portal.siemens.com/productcert/pdf/ssa-162506.pdf","https://cert-portal.siemens.com/productcert/pdf/ssa-434032.pdf","https://us-cert.cisa.gov/ics/advisories/icsa-20-105-06"],"products":["siemens:apogee_modular_building_controller_firmware","siemens:apogee_modular_equiment_controller_firmware","siemens:apogee_pxc_firmware","siemens:capital_vstar","siemens:desigo_pxc00-e.d_firmware","siemens:desigo_pxc00-u_firmware","siemens:desigo_pxc001-e.d_firmware","siemens:desigo_pxc12-e.d_firmware","siemens:desigo_pxc22-e.d_firmware","siemens:desigo_pxc22.1-e.d_firmware","siemens:desigo_pxc36.1-e.d_firmware","siemens:desigo_pxc_firmware","siemens:desigo_pxm20_firmware","siemens:desigopxc100-e.d_firmware","siemens:desigopxc128-u_firmware","siemens:desigopxc200-e.d_firmware","siemens:desigopxc50-e.d_firmware","siemens:desigopxc64-u_firmware","siemens:desigopxm20-e_firmware","siemens:nucleus_net","siemens:nucleus_readystart","siemens:nucleus_rtos","siemens:nucleus_safetycert","siemens:nucleus_source_code","siemens:simotics_connect_400_firmware","siemens:talon_tc_firmware"],"source":"nvd","synced_at":"2026-10-19T21:01:01.339895972+00:00"},"epss":{"cve":"CVE-2019-13939","score":0.00715,"percentile":0.53761,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}