CVE-2019-6576

What it is

A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15.1 Update 1), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All versions < V15.1 Update 1), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 und KTP900F (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Advanced (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Professional (All versions < V15.1 Update 1), SIMATIC WinCC (TIA Portal) (All versions < V15.1 Update 1), SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel) (All versions). An attacker with network access to affected devices could potentially obtain a TLS session key. If the attacker is able to observe TLS traffic between a legitimate user and the device, then the attacker could decrypt the TLS traffic. The security vulnerability could be exploited by an attacker who has network access to the web interface of the device and who is able to observe TLS traffic between legitimate users and the web interface of the affected device. The vulnerability could impact the confidentiality of the communication between the affected device and a legitimate user. At the time of advisory publication no public exploitation of the security vulnerability was known.

At a glance

Exploitability

Can be exploited from the same network segment without logging in. High risk of data exposure.

Exploit odds

1.8% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2019-05-14 20:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:39 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.8% in the next 30 days (EPSS).
• Severity: 6.5 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2019-05-14 20:29 UTC

Last modified

2026-06-17 02:39 UTC

Exploit probability

1.8% · EPSS, next 30 days

Weakness

CWE-310

Record status

Modified

Affected

• Siemens Simatic Hmi Comfort Panels Firmware < 15.1
• Siemens Simatic Hmi Comfort Outdoor Panels Firmware < 15.1
• Siemens Simatic Hmi Ktp Mobile Panels ktp400f Firmware < 15.1
• Siemens Simatic Hmi Ktp Mobile Panels ktp700 Firmware < 15.1
• Siemens Simatic Hmi Ktp Mobile Panels ktp700f Firmware < 15.1
• Siemens Simatic Hmi Ktp Mobile Panels ktp900 Firmware < 15.1
• Siemens Simatic Hmi Ktp Mobile Panels ktp900f Firmware < 15.1
• Siemens Simatic Wincc \(tia portal\) < 15.1

Attack profile CVSS 3.1 · 6.5

Attack vector

Adjacent network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

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