Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2019-6528: PSI GridConnect GmbH Telecontrol Gateway and Smart Telecontrol Unit family, IEC104 Security Proxy versions Tel

52
This month
HIGH 8.8UPGRADEUPGRADEUPGRADE

CVE-2019-6528 is a high-severity flaw (CVSS 8.8) affecting telecontrol gateway xs-mu firmware, telecontrol gateway vm firmware, telecontrol gateway 3g firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance2.6% (top 15%)
CISA exploited listNo
WeaknessCWE-79
Published2019-03-05
Last modified2026-06-17
Publisher (CNA): ICS-CERT · Vendor: psigridconnect

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

psigridconnect telecontrol gateway xs-mu firmware UPGRADE
Affected: < 5.1.20 · >= 5.1.21 and <= 6.0.16
Fixed in: 5.1.20
Safe to downgrade to: a release before 5.1.21
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
psigridconnect telecontrol gateway vm firmware UPGRADE
Affected: < 5.1.20 · >= 5.1.21 and <= 6.0.16
Fixed in: 5.1.20
Safe to downgrade to: a release before 5.1.21
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
psigridconnect telecontrol gateway 3g firmware UPGRADE
Affected: < 5.1.20 · >= 5.1.21 and < 6.0.16
Fixed in: 5.1.20, 6.0.16
Safe to downgrade to: a release before 5.1.21
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
psigridconnect smart telecontrol unit tcg firmware UPGRADE
Affected: < 5.1.20 · >= 5.1.21 and < 6.0.16
Fixed in: 5.1.20, 6.0.16
Safe to downgrade to: a release before 5.1.21
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
psigridconnect iec104 security proxy firmware UPGRADE
Affected: <= 2.2.10
Fixed in: newer than 2.2.10
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-6528?

telecontrol gateway xs-mu firmware: upgrade to 5.1.20; telecontrol gateway vm firmware: upgrade to 5.1.20; telecontrol gateway 3g firmware: upgrade to 5.1.20, 6.0.16. Exact commands for each OS are on this page.

Is CVE-2019-6528 being exploited?

CVE-2019-6528 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-6528 affect?

CVE-2019-6528 affects telecontrol gateway xs-mu firmware, telecontrol gateway vm firmware, telecontrol gateway 3g firmware. Severity is high (CVSS 8.8). 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.

How urgent is CVE-2019-6528?

Priority 52/100. High severity

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.