CVE-2016-7959

What it is

Siemens SIMATIC STEP 7 (TIA Portal) before 14 improperly stores pre-shared key data in TIA project files, which makes it easier for local users to obtain sensitive information by leveraging access to a file and conducting a brute-force attack.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of data exposure.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2016-10-13 10:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:53 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.3% in the next 30 days (EPSS).
• Severity: 4.7 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2016-10-13 10:59 UTC

Last modified

2026-06-17 00:53 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-254

Record status

Modified

Affected

• Siemens Simatic Step 7 ≤ 13.010

Attack profile CVSS 3.0 · 4.7

Attack vector

Local

Complexity

High

Privileges needed

Low

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-2016-7959.md and follow it. Check whether this project is affected by CVE-2016-7959. 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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