How severe is CVE-2019-6859?

CVE-2019-6859 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-6859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6859?

CVE-2019-6859 primarily affects Schneider-electric Bmx P34x Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-6859?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-6859 published?

CVE-2019-6859 was published on 2020-04-22 and last updated on 2026-06-17.

CVE-2019-6859

CVE-2019-6859 is a high-severity vulnerability in Schneider-electric Bmx P34x Firmware with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Schneider-electric Bmx P34x Firmware
Published: 2020-04-22
Last modified: 2026-06-17

Description

A CWE-798: Use of Hardcoded Credentials vulnerability exists in Modicon Controllers (All versions of the following CPUs and Communication Module product references listed in the Security Notifications), which could cause the disclosure of FTP hardcoded credentials when using the Web server of the controller on an unsecure network.

Frequently asked questions

What is CVE-2019-6859?: A CWE-798: Use of Hardcoded Credentials vulnerability exists in Modicon Controllers (All versions of the following CPUs and Communication Module product references listed in the Security Notifications), which could cause the disclosure of FTP hardcoded credentials when using the Web server of the controller on an unsecure network.
How severe is CVE-2019-6859?: CVE-2019-6859 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-6859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6859?: CVE-2019-6859 primarily affects Schneider-electric Bmx P34x Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-6859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-6859 published?: CVE-2019-6859 was published on 2020-04-22 and last updated on 2026-06-17.

References

https://www.se.com/ww/en/download/document/SEVD-2019-316-02

Affected products (10)

cpe:2.3:o:schneider-electric:bmx_p34x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:bmx_noe_0100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:bmx_noe_0110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:bmx_noc_0401_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsx_p57x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsx_ety_x103_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140_cpu6x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140_noe_771x1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140_noc_78x00_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140_noc_77101_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Bmx P34x Firmware

CVE-2019-6852 — High (CVSS 7.5): A CWE-200: Information Exposure vulnerability exists in Modicon Controllers (M340 CPUs, M340 communication modules,…

All CVEs affecting Schneider-electric Bmx P34x Firmware →

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 →