CVE-2018-13804

What it is

A vulnerability has been identified in SIMATIC IT LMS (All versions), SIMATIC IT Production Suite (Versions V7.1 < V7.1 Upd3), SIMATIC IT UA Discrete Manufacturing (Versions < V1.2), SIMATIC IT UA Discrete Manufacturing (Versions V1.2), SIMATIC IT UA Discrete Manufacturing (Versions V1.3), SIMATIC IT UA Discrete Manufacturing (Versions V2.3), SIMATIC IT UA Discrete Manufacturing (Versions V2.4). An attacker with network access to the installation could bypass the application-level authentication. In order to exploit the vulnerability, an attacker must obtain network access to an affected installation and must obtain a valid username to the system. Successful exploitation requires no user privileges and no user interaction. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the system. At the time of advisory publication no public exploitation of this vulnerability was known.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

2.7% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2018-12-13 16:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:40 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.7% in the next 30 days (EPSS).
• Severity: 8.1 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-12-13 16:29 UTC

Last modified

2026-06-17 01:40 UTC

Exploit probability

2.7% · EPSS, next 30 days

Weakness

CWE-287 · Improper authentication

Record status

Modified

Affected

• Siemens Simatic It Line Monitoring System
• Siemens Simatic It Production Suite v7.1
• Siemens Simatic It Ua Discrete Manufacturing ≤ v1.2
• Siemens Simatic It Ua Discrete Manufacturing v1.3
• Siemens Simatic It Ua Discrete Manufacturing v2.3
• Siemens Simatic It Ua Discrete Manufacturing v2.4

Attack profile CVSS 3.0 · 8.1

Attack vector

Network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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-2018-13804.md and follow it. Check whether this project is affected by CVE-2018-13804. 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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