How severe is CVE-2019-19755?

CVE-2019-19755 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-19755 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2019-19755?

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

Does CVE-2019-19755 have an EU (EUVD) identifier?

Yes. CVE-2019-19755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-9355.

When was CVE-2019-19755 published?

CVE-2019-19755 was published on 2024-04-30 and last updated on 2026-06-17.

CVE-2019-19755

CVE-2019-19755 is a critical-severity vulnerability with a CVSS 3.x base score of 9.1. 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-639.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2019-9355
Weakness: CWE-639
Published: 2024-04-30
Last modified: 2026-06-17

Description

ethOS through 1.3.3 ships with SSH host keys baked into the installation image, which allows man-in-the-middle attacks and makes identification of all public IPv4 nodes trivial with Shodan.io. NOTE: as of 2019-12-01, the vendor indicated that they plan to fix this.

Frequently asked questions

What is CVE-2019-19755?: ethOS through 1.3.3 ships with SSH host keys baked into the installation image, which allows man-in-the-middle attacks and makes identification of all public IPv4 nodes trivial with Shodan.io. NOTE: as of 2019-12-01, the vendor indicated that they plan to fix this.
How severe is CVE-2019-19755?: CVE-2019-19755 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-19755 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2019-19755?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2019-19755 have an EU (EUVD) identifier?: Yes. CVE-2019-19755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-9355.
When was CVE-2019-19755 published?: CVE-2019-19755 was published on 2024-04-30 and last updated on 2026-06-17.

References

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