CVE-2019-6528

Name: CVE-2019-6528
Creator: NVD / NIST
Published: 2019-03-05T20:29:00.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.63%

Last modified Jun 17, 2026

CVE-2019-6528 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. PSI GridConnect GmbH Telecontrol Gateway and Smart Telecontrol Unit family, IEC104 Security Proxy versions Telecontrol Gateway 3G Versions 4.2.21, 5.0.27, 5.1.19, 6.0.16 and prior, and Telecontrol Gateway XS-MU Versions 4.2.21, 5.0.27, 5.1.19, 6.0.16 and prior, and Telecontrol Gateway VM Versions 4.2.21, 5.0.27, 5.1.19, 6.0.16 and prior, and Smart Telecontrol Unit TCG Versions 5.0.27, 5.1.19, 6.0.16 and prior, and IEC104 Security Proxy Version 2.2.10 and prior The web application browser interprets input as active HTML, JavaScript, or VBScript, which could allow an attacker to execute arbitrary code.. EPSS estimates a 2.63% chance of exploitation in the next 30 days.

Description

PSI GridConnect GmbH Telecontrol Gateway and Smart Telecontrol Unit family, IEC104 Security Proxy versions Telecontrol Gateway 3G Versions 4.2.21, 5.0.27, 5.1.19, 6.0.16 and prior, and Telecontrol Gateway XS-MU Versions 4.2.21, 5.0.27, 5.1.19, 6.0.16 and prior, and Telecontrol Gateway VM Versions 4.2.21, 5.0.27, 5.1.19, 6.0.16 and prior, and Smart Telecontrol Unit TCG Versions 5.0.27, 5.1.19, 6.0.16 and prior, and IEC104 Security Proxy Version 2.2.10 and prior The web application browser interprets input as active HTML, JavaScript, or VBScript, which could allow an attacker to execute arbitrary code.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.63%

83.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Psigridconnect	Telecontrol Gateway Xs-Mu Firmware	< 5.1.20
Psigridconnect	Telecontrol Gateway Xs-Mu Firmware	>= 5.1.21, <= 6.0.16
Psigridconnect	Telecontrol Gateway Vm Firmware	< 5.1.20
Psigridconnect	Telecontrol Gateway Vm Firmware	>= 5.1.21, <= 6.0.16
Psigridconnect	Telecontrol Gateway 3g Firmware	< 5.1.20
Psigridconnect	Telecontrol Gateway 3g Firmware	>= 5.1.21, < 6.0.16
Psigridconnect	Smart Telecontrol Unit Tcg Firmware	< 5.1.20
Psigridconnect	Smart Telecontrol Unit Tcg Firmware	>= 5.1.21, < 6.0.16
Psigridconnect	Iec104 Security Proxy Firmware	<= 2.2.10

References

http://www.securityfocus.com/bid/107201Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-059-01Third Party Advisory, US Government Resource
http://www.securityfocus.com/bid/107201Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-059-01Third Party Advisory, US Government Resource

Timeline

Published: Mar 5, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-6528?

How severe is CVE-2019-6528?

CVE-2019-6528 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.63% probability of exploitation in the next 30 days.

How do I fix CVE-2019-6528?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-6528?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST