# Broken or risky cryptographic algorithm in Siemens SIMATIC CP 1626 and others

CVE record · `CVE-2019-10929`

- **Identifiers:** `CVE-2019-10929`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** siemens
- **Weakness (CWE):** [CWE-327](https://cwe.mitre.org/data/definitions/327.html)
- **Tags:** [Weak cryptography or TLS](https://agentprime.io/advisories/tag/weak-crypto.md)
- **Technologies:** [Siemens SIMATIC CP 1626](https://agentprime.io/advisories/technology/siemens-simatic-cp-1626.md) · [Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-et-200sp-open-controller-cpu-1515sp-pc-incl-siplus-variants.md) · [Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-et-200sp-open-controller-cpu-1515sp-pc2-incl-siplus-variants.md) · [Siemens SIMATIC HMI Panel (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-hmi-panel-incl-siplus-variants.md) · [Siemens SIMATIC NET PC Software V14](https://agentprime.io/advisories/technology/siemens-simatic-net-pc-software-v14.md) · [Siemens SIMATIC NET PC Software V15](https://agentprime.io/advisories/technology/siemens-simatic-net-pc-software-v15.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 S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-s7-1500-cpu-family-incl-related-et200-cpus-and-siplus-variants.md) · [Siemens SIMATIC S7-1500 Software Controller](https://agentprime.io/advisories/technology/siemens-simatic-s7-1500-software-controller.md) · [Siemens SIMATIC S7-PLCSIM Advanced](https://agentprime.io/advisories/technology/siemens-simatic-s7-plcsim-advanced.md) · [Siemens SIMATIC STEP 7 (TIA Portal)](https://agentprime.io/advisories/technology/siemens-simatic-step-7-tia-portal.md) · [Siemens SIMATIC WinCC (TIA Portal)](https://agentprime.io/advisories/technology/siemens-simatic-wincc-tia-portal.md) · [Siemens SIMATIC WinCC OA](https://agentprime.io/advisories/technology/siemens-simatic-wincc-oa.md) · [Siemens SIMATIC WinCC Runtime Advanced](https://agentprime.io/advisories/technology/siemens-simatic-wincc-runtime-advanced.md) · [Siemens SIMATIC WinCC Runtime Professional](https://agentprime.io/advisories/technology/siemens-simatic-wincc-runtime-professional.md) · [Siemens TIM 1531 IRC (incl. SIPLUS NET variants)](https://agentprime.io/advisories/technology/siemens-tim-1531-irc-incl-siplus-net-variants.md)
- **Published:** 13 Aug 2019
- **Updated:** 4 Aug 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: siemens) at 13 Aug 2019, 18:55 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 CP 1626.
  - affected: `All versions`
- Vendor: Siemens. Product: SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants).
  - affected: `All versions`
- Vendor: Siemens. Product: SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants).
  - affected: `All versions < V20.8`
- Vendor: Siemens. Product: SIMATIC HMI Panel (incl. SIPLUS variants).
  - affected: `All versions`
- Vendor: Siemens. Product: SIMATIC NET PC Software V14.
  - affected: `All versions < V14 SP1 Update 14`
- Vendor: Siemens. Product: SIMATIC NET PC Software V15.
  - affected: `All versions`
- Vendor: Siemens. Product: SIMATIC S7-1200 CPU family (incl. SIPLUS variants).
  - affected: `All versions < V4.4.0`
- Vendor: Siemens. Product: SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants).
  - affected: `All versions < V2.8.1`
- Vendor: Siemens. Product: SIMATIC S7-1500 Software Controller.
  - affected: `All versions < V20.8`
- Vendor: Siemens. Product: SIMATIC S7-PLCSIM Advanced.
  - affected: `All versions < V3.0`
- Vendor: Siemens. Product: SIMATIC STEP 7 (TIA Portal).
  - affected: `All versions < V16`
- Vendor: Siemens. Product: SIMATIC WinCC (TIA Portal).
  - affected: `All versions < V16`
- Vendor: Siemens. Product: SIMATIC WinCC OA.
  - affected: `All versions < V3.16 P013`
- Vendor: Siemens. Product: SIMATIC WinCC Runtime Advanced.
  - affected: `All versions < V16`
- Vendor: Siemens. Product: SIMATIC WinCC Runtime Professional.
  - affected: `All versions < V16`
- Vendor: Siemens. Product: TIM 1531 IRC (incl. SIPLUS NET variants).
  - affected: `All versions < V2.1`

## 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0098, the 62nd 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 Aug 2019. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2019-10929](https://www.cve.org/CVERecord?id=CVE-2019-10929)
- [NVD: CVE-2019-10929](https://nvd.nist.gov/vuln/detail/CVE-2019-10929)

### References from the CNA

- <https://cert-portal.siemens.com/productcert/pdf/ssa-232418.pdf>
- <https://cert-portal.siemens.com/productcert/pdf/ssa-273799.pdf>
- <https://www.us-cert.gov/ics/advisories/icsa-19-344-04>

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-2019-10929>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2019-10929/>. Everything for agents: <https://agentprime.io/llms.txt>.
