How severe is CVE-2019-7594?

CVE-2019-7594 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-7594 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-7594?

CVE-2019-7594 affects Johnsoncontrols Metasys System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-7594?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-7594 published?

CVE-2019-7594 was published on 2019-08-20 and last updated on 2026-06-17.

CVE-2019-7594

CVE-2019-7594 is a medium-severity vulnerability in Johnsoncontrols Metasys System with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 6.4
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Johnsoncontrols Metasys System
Published: 2019-08-20
Last modified: 2026-06-17

Description

Metasys® ADS/ADX servers and NAE/NIE/NCE engines prior to 9.0 make use of a hardcoded RC2 key for certain encryption operations involving the Site Management Portal (SMP).

Frequently asked questions

What is CVE-2019-7594?: Metasys® ADS/ADX servers and NAE/NIE/NCE engines prior to 9.0 make use of a hardcoded RC2 key for certain encryption operations involving the Site Management Portal (SMP).
How severe is CVE-2019-7594?: CVE-2019-7594 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-7594 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-7594?: CVE-2019-7594 affects Johnsoncontrols Metasys System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-7594?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-7594 published?: CVE-2019-7594 was published on 2019-08-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:johnsoncontrols:metasys_system:*:*:*:*:*:*:*:*

More vulnerabilities in Johnsoncontrols Metasys System

CVE-2019-7593 — Medium (CVSS 6.8): Metasys® ADS/ADX servers and NAE/NIE/NCE engines prior to 9.0 make use of a shared RSA key pair for certain encryption…
CVE-2018-10624 — Medium (CVSS 6.5): In Johnson Controls Metasys System Versions 8.0 and prior and BCPro (BCM) all versions prior to 3.0.2, this…

All CVEs affecting Johnsoncontrols Metasys System →

Other CWE-798 (Use of Hard-coded Credentials) vulnerabilities

CVE-2026-13768 — Critical (CVSS 10.0): Gardyn devices expose a privileged iothubowner key. Access to this key will allow a malicious user to invoke an IoTHub…
CVE-2026-45631 — Critical (CVSS 10.0): Dokploy is a free, self-hostable Platform as a Service (PaaS). From 0.27.0 to before 0.29.3, a hardcoded…
CVE-2026-22769 — Critical (CVSS 10.0): Dell RecoverPoint for Virtual Machines, versions prior to 6.0.3.1 HF1, contain a hardcoded credential vulnerability.…
CVE-2025-42890 — Critical (CVSS 10.0): SQL Anywhere Monitor (Non-GUI) baked credentials into the code,exposing the resources or functionality to unintended…
CVE-2025-7503 — Critical (CVSS 10.0): An OEM IP camera manufactured by Shenzhen Liandian Communication Technology LTD exposes a Telnet service (port 23) with…
CVE-2025-20309 — Critical (CVSS 10.0): A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…

Browse all CWE-798 (Use of Hard-coded Credentials) vulnerabilities →