How severe is CVE-2020-2146?

CVE-2020-2146 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2020-2146 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-2146?

CVE-2020-2146 affects Jenkins Mac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-2146?

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-2020-2146 published?

CVE-2020-2146 was published on 2020-03-09 and last updated on 2026-06-17.

CVE-2020-2146

CVE-2020-2146 is a high-severity vulnerability in Jenkins Mac with a CVSS 3.x base score of 7.4. 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-347.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Jenkins Mac
Published: 2020-03-09
Last modified: 2026-06-17

Description

Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.

Frequently asked questions

What is CVE-2020-2146?: Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.
How severe is CVE-2020-2146?: CVE-2020-2146 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2020-2146 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2146?: CVE-2020-2146 affects Jenkins Mac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2146?: 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-2020-2146 published?: CVE-2020-2146 was published on 2020-03-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:mac:*:*:*:*:*:jenkins:*:*

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