# Uncontrolled resource consumption in Siemens SIMATIC ET 200pro IM154-8 PN/DP CPU and others

CVE record · `CVE-2019-13940`

- **Identifiers:** `CVE-2019-13940`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **CNA:** siemens
- **Weakness (CWE):** [CWE-400](https://cwe.mitre.org/data/definitions/400.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Technologies:** [Siemens SIMATIC ET 200pro IM154-8 PN/DP CPU](https://agentprime.io/advisories/technology/siemens-simatic-et-200pro-im154-8-pn-dp-cpu.md) · [Siemens SIMATIC ET 200pro IM154-8F PN/DP CPU](https://agentprime.io/advisories/technology/siemens-simatic-et-200pro-im154-8f-pn-dp-cpu.md) · [Siemens SIMATIC ET 200pro IM154-8FX PN/DP CPU](https://agentprime.io/advisories/technology/siemens-simatic-et-200pro-im154-8fx-pn-dp-cpu.md) · [Siemens SIMATIC ET 200S IM151-8 PN/DP CPU](https://agentprime.io/advisories/technology/siemens-simatic-et-200s-im151-8-pn-dp-cpu.md) · [Siemens SIMATIC ET 200S IM151-8F PN/DP CPU](https://agentprime.io/advisories/technology/siemens-simatic-et-200s-im151-8f-pn-dp-cpu.md) · [Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-s7-1200-cpu-family-incl-siplus-variants.md) · [Siemens SIMATIC S7-300 CPU 314C-2 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-314c-2-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 315-2 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-315-2-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 315F-2 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-315f-2-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 315T-3 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-315t-3-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 317-2 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-317-2-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 317F-2 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-317f-2-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 317T-3 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-317t-3-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 317TF-3 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-317tf-3-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 319-3 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-319-3-pn-dp.md) · [Siemens SIMATIC S7-300 CPU 319F-3 PN/DP](https://agentprime.io/advisories/technology/siemens-simatic-s7-300-cpu-319f-3-pn-dp.md) · [Siemens SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-s7-400-pn-dp-v6-and-below-cpu-family-incl-siplus-variants.md) · [Siemens SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-s7-400-pn-dp-v7-cpu-family-incl-siplus-variants.md) · [Siemens SIMATIC WinAC RTX 2010](https://agentprime.io/advisories/technology/siemens-simatic-winac-rtx-2010.md) · [Siemens SIMATIC WinAC RTX F 2010](https://agentprime.io/advisories/technology/siemens-simatic-winac-rtx-f-2010.md)
- **Published:** 11 Feb 2020
- **Updated:** 5 Aug 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: siemens) at 11 Feb 2020, 15:36 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: SIMATIC ET 200pro IM154-8 PN/DP CPU.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC ET 200pro IM154-8F PN/DP CPU.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC ET 200pro IM154-8FX PN/DP CPU.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC ET 200S IM151-8 PN/DP CPU.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC ET 200S IM151-8F PN/DP CPU.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-1200 CPU family (incl. SIPLUS variants).
  - affected: `All versions < V4.1`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 314C-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 315-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 315F-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 315T-3 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 317-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 317F-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 317T-3 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 317TF-3 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 319-3 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-300 CPU 319F-3 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants).
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants).
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC WinAC RTX 2010.
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: SIMATIC WinAC RTX F 2010.
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: SIPLUS ET 200S IM151-8 PN/DP CPU.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIPLUS ET 200S IM151-8F PN/DP CPU.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIPLUS S7-300 CPU 314C-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIPLUS S7-300 CPU 315-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIPLUS S7-300 CPU 315F-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIPLUS S7-300 CPU 317-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown
- Vendor: Siemens. Product: SIPLUS S7-300 CPU 317F-2 PN/DP.
  - affected: `All versions < V3.X.17`
  - Other versions: unknown

## 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

- 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C`, from CNA (siemens)

- **CISA KEV:** Not listed.
- **EPSS:** 0.017, the 77th 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 11 Feb 2020. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2019-13940](https://www.cve.org/CVERecord?id=CVE-2019-13940)
- [NVD: CVE-2019-13940](https://nvd.nist.gov/vuln/detail/CVE-2019-13940)

### References from the CNA

- <https://cert-portal.siemens.com/productcert/pdf/ssa-431678.pdf>

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 (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2019-13940>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2019-13940/>. Everything for agents: <https://agentprime.io/llms.txt>.