# Resource allocation without limits in Siemens Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet… and others CVE record · `CVE-2020-28400` - **Identifiers:** `CVE-2020-28400` - **State:** Confirmed - **Severity:** CVSS 8.7 High - **Critical:** No - **CNA:** siemens - **Weakness (CWE):** [CWE-770](https://cwe.mitre.org/data/definitions/770.html) - **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md) - **Technologies:** [Siemens Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller](https://agentprime.io/advisories/technology/siemens-development-evaluation-kits-for-profinet-io-dk-standard-ethernet-control.md) · [Siemens Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200](https://agentprime.io/advisories/technology/siemens-development-evaluation-kits-for-profinet-io-ek-ertec-200.md) · [Siemens Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P](https://agentprime.io/advisories/technology/siemens-development-evaluation-kits-for-profinet-io-ek-ertec-200p.md) · [Siemens RUGGEDCOM RM1224 LTE(4G) EU](https://agentprime.io/advisories/technology/siemens-ruggedcom-rm1224-lte-4g-eu.md) · [Siemens RUGGEDCOM RM1224 LTE(4G) NAM](https://agentprime.io/advisories/technology/siemens-ruggedcom-rm1224-lte-4g-nam.md) · [Siemens SCALANCE M804PB](https://agentprime.io/advisories/technology/siemens-scalance-m804pb.md) · [Siemens SCALANCE M812-1 ADSL-Router](https://agentprime.io/advisories/technology/siemens-scalance-m812-1-adsl-router.md) · [Siemens SCALANCE M816-1 ADSL-Router](https://agentprime.io/advisories/technology/siemens-scalance-m816-1-adsl-router.md) · [Siemens SCALANCE M826-2 SHDSL-Router](https://agentprime.io/advisories/technology/siemens-scalance-m826-2-shdsl-router.md) · [Siemens SCALANCE M874-2](https://agentprime.io/advisories/technology/siemens-scalance-m874-2.md) · [Siemens SCALANCE M874-3](https://agentprime.io/advisories/technology/siemens-scalance-m874-3.md) · [Siemens SCALANCE M874-3 3G-Router (CN)](https://agentprime.io/advisories/technology/siemens-scalance-m874-3-3g-router-cn.md) · [Siemens SCALANCE M876-3](https://agentprime.io/advisories/technology/siemens-scalance-m876-3.md) · [Siemens SCALANCE M876-3 (ROK)](https://agentprime.io/advisories/technology/siemens-scalance-m876-3-rok.md) · [Siemens SCALANCE M876-4](https://agentprime.io/advisories/technology/siemens-scalance-m876-4.md) · [Siemens SCALANCE M876-4 (EU)](https://agentprime.io/advisories/technology/siemens-scalance-m876-4-eu.md) · [Siemens SCALANCE M876-4 (NAM)](https://agentprime.io/advisories/technology/siemens-scalance-m876-4-nam.md) · [Siemens SCALANCE MUM853-1 (A1)](https://agentprime.io/advisories/technology/siemens-scalance-mum853-1-a1.md) · [Siemens SCALANCE MUM853-1 (B1)](https://agentprime.io/advisories/technology/siemens-scalance-mum853-1-b1.md) · [Siemens SCALANCE MUM853-1 (EU)](https://agentprime.io/advisories/technology/siemens-scalance-mum853-1-eu.md) - **Published:** 13 Jul 2021 - **Updated:** 14 Apr 2026 - **Reviewed by a person:** No Published by the CVE Program (CNA: siemens) at 13 Jul 2021, 11:02 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Affected products, as the CNA wrote them - Vendor: Siemens. Product: Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller. - affected: `before *` (custom) - Other versions: unknown - Vendor: Siemens. Product: Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200. - affected: `before *` (custom) - Other versions: unknown - Vendor: Siemens. Product: Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P. - affected: `before V4.7` (custom) - Other versions: unknown - Vendor: Siemens. Product: RUGGEDCOM RM1224 LTE(4G) EU. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: RUGGEDCOM RM1224 LTE(4G) NAM. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M804PB. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M812-1 ADSL-Router. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M812-1 ADSL-Router. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M816-1 ADSL-Router. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M816-1 ADSL-Router. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M826-2 SHDSL-Router. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M874-2. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M874-3. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M874-3 3G-Router (CN). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M876-3. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M876-3 (ROK). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M876-4. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M876-4 (EU). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE M876-4 (NAM). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM853-1 (A1). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM853-1 (B1). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM853-1 (EU). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM856-1 (A1). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM856-1 (B1). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM856-1 (CN). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM856-1 (EU). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE MUM856-1 (RoW). - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE S615 EEC LAN-Router. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE S615 LAN-Router. - affected: `before V6.4` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W1748-1 M12. - affected: `before V3.0.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W1748-1 M12. - affected: `before V3.0.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W1788-1 M12. - affected: `before V3.0.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W1788-2 EEC M12. - affected: `before V3.0.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W1788-2 M12. - affected: `before V3.0.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W1788-2IA M12. - affected: `before V3.0.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W721-1 RJ45. - affected: `before V6.4.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W721-1 RJ45. - affected: `before V6.4.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W722-1 RJ45. - affected: `before V6.4.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W722-1 RJ45. - affected: `before V6.4.0` (custom) - Other versions: unknown - Vendor: Siemens. Product: SCALANCE W722-1 RJ45. - affected: `before V6.4.0` (custom) - Other versions: unknown And 316 more products. The full list is on the CVE record: ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from CNA (siemens) - 8.7 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`, from CNA (siemens) (used for this record) - **CISA KEV:** Not listed. - **EPSS:** 0.019, the 79th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 13 Jul 2021. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2020-28400](https://www.cve.org/CVERecord?id=CVE-2020-28400) - [NVD: CVE-2020-28400](https://nvd.nist.gov/vuln/detail/CVE-2020-28400) ### References from the CNA - - - Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .