Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2019-6575

A vulnerability has been identified in SIMATIC CP 443-1 OPC UA (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V2.7), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (incl. SIPLUS variants) (All versions < V15.1 Upd 4), SIMATIC HMI Comfort Panels 4" - 22" (incl. SIPLUS variants) (All versions < V15.1 Upd 4), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Upd 4), SIMATIC IPC DiagMonitor (All versions < V5.1.3), SIMATIC NET PC Software V13 (All versions), SIMATIC NET PC Software V14 (All versions < V14 SP1 Update 14), SIMATIC NET PC Software V15 (All versions), SIMATIC RF188C (All versions < V1.1.0), SIMATIC RF600R family (All versions < V3.2.1), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 < V2.6.1), SIMATIC S7-1500 Software Controller (All versions between V2.5 (including) and V2.7 (excluding)), SIMATIC WinCC OA (All versions < V3.15 P018), SIMATIC WinCC Runtime Advanced (All versions < V15.1 Upd 4), SINEC NMS (All versions < V1.0 SP1), SINEMA Server (All versions < V14 SP2), SINUMERIK OPC UA Server (All versions < V2.1), TeleControl Server Basic (All versions < V3.1.1). Specially crafted network packets sent to affected devices on port 4840/tcp could allow an unauthenticated remote attacker to cause a denial of service condition of the OPC communication or crash the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the OPC communication.

  • Published: Apr 17, 2019
  • Updated: Nov 9, 2025
  • CVE: CVE-2019-6575
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: High
  • Score: 7.8
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
Software From Fixed in
siemens / simatic_cp443-1_opc_ua_firmware - -
siemens / simatic_et_200_open_controller_cpu_1515sp_pc2_firmware - 2.7
siemens / simatic_ipc_diagmonitor_firmware - -
siemens / simatic_net_pc_software_firmware - -
siemens / simatic_rf188c_firmware - -
siemens / simatic_rf600r_firmware - -
siemens / simatic_s7-1500_firmware - 2.5.x
siemens / sinumerik_opc_ua_server - 2.1
siemens / simatic_wincc_oa - 3.15-p018
siemens / simatic_wincc_runtime_advanced - -
siemens / simatic_wincc_runtime_comfort - -
siemens / simatic_wincc_runtime_hsp_comfort - -
siemens / simatic_wincc_runtime_mobile - -
siemens / sinema_server - -
siemens / simatic_s7-1500_software_controller - 2.5.x
siemens / opc_unified_architecture - -
siemens / telecontrol_server_basic - 3.1.1
siemens / sinec-nms - 1.0
siemens / sinec-nms 1.0 1.0.x
siemens / simatic_s7-1500f_firmware - 2.5.x
siemens / simatic_s7-1500s_firmware - 2.5.x
siemens / simatic_s7-1500t_firmware - 2.5.x
siemens / simatic_hmi_comfort_outdoor_panels_firmware - 15.1
siemens / simatic_hmi_comfort_outdoor_panels_firmware 15.1 15.1.x
siemens / simatic_hmi_comfort_outdoor_panels_firmware 15.1-upd_1 15.1-upd_1.x
siemens / simatic_hmi_comfort_outdoor_panels_firmware 15.1-upd_2 15.1-upd_2.x
siemens / simatic_hmi_comfort_outdoor_panels_firmware 15.1-upd_3 15.1-upd_3.x
siemens / simatic_hmi_ktp_mobile_panels_ktp400f_firmware - 15.1
siemens / simatic_hmi_ktp_mobile_panels_ktp400f_firmware 15.1 15.1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp400f_firmware 15.1-upd_3 15.1-upd_3.x
siemens / simatic_hmi_ktp_mobile_panels_ktp400f_firmware 15.1-upd_2 15.1-upd_2.x
siemens / simatic_hmi_ktp_mobile_panels_ktp400f_firmware 15.1-upd_1 15.1-upd_1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900_firmware - 15.1
siemens / simatic_hmi_ktp_mobile_panels_ktp900_firmware 15.1 15.1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900_firmware 15.1-upd_1 15.1-upd_1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900_firmware 15.1-upd_2 15.1-upd_2.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900_firmware 15.1-upd_3 15.1-upd_3.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700f_firmware - 15.1
siemens / simatic_hmi_ktp_mobile_panels_ktp700f_firmware 15.1 15.1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700f_firmware 15.1-upd_1 15.1-upd_1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700f_firmware 15.1-upd_2 15.1-upd_2.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700f_firmware 15.1-upd_3 15.1-upd_3.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700_firmware - 15.1
siemens / simatic_hmi_ktp_mobile_panels_ktp700_firmware 15.1 15.1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700_firmware 15.1-upd_1 15.1-upd_1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700_firmware 15.1-upd_2 15.1-upd_2.x
siemens / simatic_hmi_ktp_mobile_panels_ktp700_firmware 15.1-upd_3 15.1-upd_3.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900f_firmware - 15.1
siemens / simatic_hmi_ktp_mobile_panels_ktp900f_firmware 15.1 15.1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900f_firmware 15.1-upd_1 15.1-upd_1.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900f_firmware 15.1-upd_2 15.1-upd_2.x
siemens / simatic_hmi_ktp_mobile_panels_ktp900f_firmware 15.1-upd_3 15.1-upd_3.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.