How severe is CVE-2019-19101?

CVE-2019-19101 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-19101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19101?

CVE-2019-19101 affects Br-automation Automation Studio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19101?

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

When was CVE-2019-19101 published?

CVE-2019-19101 was published on 2020-04-29 and last updated on 2026-06-17.

CVE-2019-19101

CVE-2019-19101 is a medium-severity vulnerability in Br-automation Automation Studio with a CVSS 3.x base score of 6.5. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Br-automation Automation Studio
Published: 2020-04-29
Last modified: 2026-06-17

Description

A missing secure communication definition and an incomplete TLS validation in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.5SP, < 4.6.4 and < 4.7.2 enable unauthenticated users to perform MITM attacks via the B&R upgrade server.

Frequently asked questions

What is CVE-2019-19101?: A missing secure communication definition and an incomplete TLS validation in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.5SP, < 4.6.4 and < 4.7.2 enable unauthenticated users to perform MITM attacks via the B&R upgrade server.
How severe is CVE-2019-19101?: CVE-2019-19101 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-19101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19101?: CVE-2019-19101 affects Br-automation Automation Studio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19101?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19101 published?: CVE-2019-19101 was published on 2020-04-29 and last updated on 2026-06-17.

References

https://www.br-automation.com/en/downloads/032020-multiple-vulnerabilities-in-automation-studio/

Affected products (1)

cpe:2.3:a:br-automation:automation_studio:*:*:*:*:*:*:*:*

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