# CVE-2019-19300: Denial of service in Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200 > Attackers can cause a denial of service in Siemens SIMATIC and PROFINET devices by exploiting a resource exhaustion vulnerability. - **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** No - **Published:** 14 Apr 2020 - **Updated:** 8 Jul 2025 - **Also known as:** GHSA-vwm3-cv6h-hrm3 ## What is CVE-2019-19300? CVE-2019-19300 is a high-severity denial of service vulnerability in Siemens Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200, published on 14 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description A vulnerability has been identified in Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200, Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P, KTK ATE530S, SIDOOR ATD430W, SIDOOR ATE530S COATED, SIDOOR ATE531S, SIMATIC ET 200AL IM 157-1 PN (6ES7157-1AB00-0AB0), SIMATIC ET 200eco PN, AI 8xRTD/TC, M12-L (6ES7144-6JF00-0BB0), SIMATIC ET 200eco PN, CM 4x IO-Link, M12-L (6ES7148-6JE00-0BB0), SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L (6ES7148-6JG00-0BB0), SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L (6ES7148-6JJ00-0BB0), SIMATIC ET 200eco PN, DI 16x24VDC, M12-L (6ES7141-6BH00-0BB0), SIMATIC ET 200eco PN, DI 8x24VDC, M12-L (6ES7141-6BG00-0BB0), SIMATIC ET 200eco PN, DIQ 16x24VDC/2A, M12-L (6ES7143-6BH00-0BB0), SIMATIC ET 200eco PN, DQ 8x24VDC/0,5A, M12-L (6ES7142-6BG00-0BB0), SIMATIC ET 200eco PN, DQ 8x24VDC/2A, M12-L (6ES7142-6BR00-0BB0), SIMATIC ET 200MP IM 155-5 PN HF (6ES7155-5AA00-0AC0), SIMATIC ET 200pro IM 154-8 PN/DP CPU (6ES7154-8AB01-0AB0), SIMATIC ET 200pro IM 154-8F PN/DP CPU (6ES7154-8FB01-0AB0), SIMATIC ET 200pro IM 154-8FX PN/DP CPU (6ES7154-8FX00-0AB0), SIMATIC ET 200S IM 151-8 PN/DP CPU (6ES7151-8AB01-0AB0), SIMATIC ET 200S IM 151-8F PN/DP CPU (6ES7151-8FB01-0AB0), SIMATIC ET 200SP IM 155-6 MF HF (6ES7155-6MU00-0CN0), SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants), SIMATIC ET 200SP IM 155-6 PN HF (6ES7155-6AU00-0CN0), SIMATIC ET 200SP IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0), SIMATIC ET 200SP IM 155-6 PN/3 HF (6ES7155-6AU30-0CN0), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants), SIMATIC MICRO-DRIVE PDC, SIMATIC PN/MF Coupler (6ES7158-3MU10-0XA0), SIMATIC PN/PN Coupler (6ES7158-3AD10-0XA0), SIMATIC S7-1200 CPU family (incl. SIPLUS variants), SIMATIC S7-1500 CPU family (incl. related ET 200 CPUs and SIPLUS variants), SIMATIC S7-1500 Software Controller, SIMATIC S7-300 CPU 314C-2 PN/DP (6ES7314-6EH04-0AB0), SIMATIC S7-300 CPU 315-2 PN/DP (6ES7315-2EH14-0AB0), SIMATIC S7-300 CPU 315F-2 PN/DP (6ES7315-2FJ14-0AB0), SIMATIC S7-300 CPU 315T-3 PN/DP (6ES7315-7TJ10-0AB0), SIMATIC S7-300 CPU 317-2 PN/DP (6ES7317-2EK14-0AB0), SIMATIC S7-300 CPU 317F-2 PN/DP (6ES7317-2FK14-0AB0), SIMATIC S7-300 CPU 317T-3 PN/DP (6ES7317-7TK10-0AB0), SIMATIC S7-300 CPU 317TF-3 PN/DP (6ES7317-7UL10-0AB0), SIMATIC S7-300 CPU 319-3 PN/DP (6ES7318-3EL01-0AB0), SIMATIC S7-300 CPU 319F-3 PN/DP (6ES7318-3FL01-0AB0), SIMATIC S7-400 H V6 and below CPU family (incl. SIPLUS variants), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants), SIMATIC TDC CP51M1, SIMATIC TDC CPU555, SIMATIC WinAC RTX 2010 (6ES7671-0RC08-0YA0), SIMATIC WinAC RTX F 2010 (6ES7671-1RC08-0YA0), SINAMICS S/G Control Unit w. PROFINET, SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-2AC0), SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-7AC0), SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL (6AG2155-5AA00-1AC0), SIPLUS ET 200S IM 151-8 PN/DP CPU (6AG1151-8AB01-7AB0), SIPLUS ET 200S IM 151-8F PN/DP CPU (6AG1151-8FB01-2AB0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU00-2CN0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU00-4CN0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-2CN0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-7CN0), SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL (6AG2155-6AU00-1CN0), SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL (6AG2155-6AU01-1CN0), SIPLUS ET 200SP IM 155-6 PN HF TX RAIL (6AG2155-6AU01-4CN0), SIPLUS NET PN/PN Coupler (6AG2158-3AD10-4XA0), SIPLUS S7-300 CPU 314C-2 PN/DP (6AG1314-6EH04-7AB0), SIPLUS S7-300 CPU 315-2 PN/DP (6AG1315-2EH14-7AB0), SIPLUS S7-300 CPU 315F-2 PN/DP (6AG1315-2FJ14-2AB0), SIPLUS S7-300 CPU 317-2 PN/DP (6AG1317-2EK14-7AB0), SIPLUS S7-300 CPU 317F-2 PN/DP (6AG1317-2FK14-2AB0). The Interniche-based TCP Stack can be forced to make very expensive calls for every incoming packet which can lead to a denial of service. Weakness: CWE-400 (Uncontrolled Resource Consumption) ## Which versions are affected by CVE-2019-19300? It affects 33 products. Products: Siemens Ktk Ate530s Firmware, Siemens Sidoor Atd430w Firmware, Siemens Sidoor Ate530s Coated Firmware, Siemens Sidoor Ate531s Firmware, Siemens Simatic Et200mp Im155-5 Pn Hf Firmware, Siemens Simatic Et200sp Im155-6 Mf Hf Firmware, Siemens Simatic Et200sp Im155-6 Pn\/2 Hf Firmware, Siemens Simatic Et200sp Im155-6 Pn Ha Firmware, Siemens Simatic Et200sp Im155-6 Pn Hf Firmware, Siemens Simatic Et 200sp Open Controller Cpu 1515sp Pc2 Firmware, Siemens Simatic Et 200sp Open Controller Cpu 1515sp Pc Firmware, Siemens Simatic Micro-Drive Pdc Firmware, Siemens Simatic Pn\/Pn Coupler Firmware, Siemens Simatic S7-1500, Siemens Simatic S7-1500 Cpu 1511-1 Pn Firmware, Siemens Simatic S7-1500 Cpu 1511f-1 Pn Firmware, Siemens Simatic S7-1500 Cpu 1513-1 Pn Firmware, Siemens Simatic S7-1500 Cpu 1513f-1 Pn Firmware, Siemens Simatic S7-1500 Cpu 1515-2 Pn Firmware, Siemens Simatic S7-1500 Cpu 1515f-2 Pn Firmware and 13 more. ## How do I fix CVE-2019-19300? No fix has been published for CVE-2019-19300 yet. Limit exposure of the affected software until one is available. ## Is CVE-2019-19300 being exploited? There is no known exploitation of CVE-2019-19300 in the wild and no public exploit code. ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2019-19300 and fix it if it is affected. What it is: CVE-2019-19300 is a high-severity denial of service vulnerability in Siemens Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200, published on 14 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2019-19300 in the wild and no public exploit code. Affected product: Siemens Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2019-19300/ (Markdown: https://insights.sbomify.com/CVE-2019-19300/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2019-19300 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-19300 - OSV: https://osv.dev/vulnerability/CVE-2019-19300 --- From sbomify Insights: https://insights.sbomify.com/CVE-2019-19300/ Summaries are generated and may contain mistakes; the official description above is the record.