CVE-2023-30757

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. High risk of data exposure.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2023-06-13 09:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 05:55 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.1% in the next 30 days (EPSS).
• Severity: 6.2 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-06-13 09:15 UTC

Last modified

2026-06-17 05:55 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-693

Record status

Modified

Affected

• Siemens Totally Integrated Automation Portal 14.0
• Siemens Totally Integrated Automation Portal 15
• Siemens Totally Integrated Automation Portal 15.1
• Siemens Totally Integrated Automation Portal 16
• Siemens Totally Integrated Automation Portal 17
• Siemens Totally Integrated Automation Portal 18

Attack profile CVSS 3.1 · 6.2

Attack vector

Local

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-30757.md and follow it. Check whether this project is affected by CVE-2023-30757. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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