How severe is CVE-2019-20405?

CVE-2019-20405 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2019-20405 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20405?

CVE-2019-20405 primarily affects Atlassian Jira Data Center. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20405?

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

When was CVE-2019-20405 published?

CVE-2019-20405 was published on 2020-02-06 and last updated on 2026-06-17.

CVE-2019-20405

CVE-2019-20405 is a medium-severity vulnerability in Atlassian Jira Data Center with a CVSS 3.x base score of 4.3. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Atlassian Jira Data Center
Published: 2020-02-06
Last modified: 2026-06-17

Description

The JMX monitoring flag in Atlassian Jira Server and Data Center before version 8.6.0 allows remote attackers to turn the JMX monitoring flag off or on via a Cross-site request forgery (CSRF) vulnerability.

Frequently asked questions

What is CVE-2019-20405?: The JMX monitoring flag in Atlassian Jira Server and Data Center before version 8.6.0 allows remote attackers to turn the JMX monitoring flag off or on via a Cross-site request forgery (CSRF) vulnerability.
How severe is CVE-2019-20405?: CVE-2019-20405 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2019-20405 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20405?: CVE-2019-20405 primarily affects Atlassian Jira Data Center. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20405?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20405 published?: CVE-2019-20405 was published on 2020-02-06 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-70570

Affected products (2)

cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*

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