How severe is CVE-2019-16561?

CVE-2019-16561 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2019-16561 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-2019-16561?

CVE-2019-16561 affects Jenkins Websphere Deployer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16561?

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-2019-16561 published?

CVE-2019-16561 was published on 2019-12-17 and last updated on 2026-06-17.

CVE-2019-16561

CVE-2019-16561 is a high-severity vulnerability in Jenkins Websphere Deployer with a CVSS 3.x base score of 7.1. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 5.5
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Jenkins Websphere Deployer
Published: 2019-12-17
Last modified: 2026-06-17

Description

Jenkins WebSphere Deployer Plugin 1.6.1 and earlier allows users with Overall/Read access to disable SSL/TLS certificate and hostname validation for the entire Jenkins master JVM.

Frequently asked questions

What is CVE-2019-16561?: Jenkins WebSphere Deployer Plugin 1.6.1 and earlier allows users with Overall/Read access to disable SSL/TLS certificate and hostname validation for the entire Jenkins master JVM.
How severe is CVE-2019-16561?: CVE-2019-16561 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2019-16561 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-2019-16561?: CVE-2019-16561 affects Jenkins Websphere Deployer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16561?: 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-2019-16561 published?: CVE-2019-16561 was published on 2019-12-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:websphere_deployer:*:*:*:*:*:jenkins:*:*

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