How severe is CVE-2024-21683?

CVE-2024-21683 has a CVSS 3.x base score of 8.8, 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 high, and availability high.

Is CVE-2024-21683 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 88% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21683?

CVE-2024-21683 primarily affects Atlassian Confluence Data Center. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21683?

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.

Does CVE-2024-21683 have an EU (EUVD) identifier?

Yes. CVE-2024-21683 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19299.

When was CVE-2024-21683 published?

CVE-2024-21683 was published on 2024-05-21 and last updated on 2026-06-17.

CVE-2024-21683

CVE-2024-21683 is a high-severity vulnerability in Atlassian Confluence Data Center with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 88% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 88% (100th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19299
Weakness: CWE-94
Affected product: Atlassian Confluence Data Center
Published: 2024-05-21
Last modified: 2026-06-17

Description

This High severity RCE (Remote Code Execution) vulnerability was introduced in version 5.2 of Confluence Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.2, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions. See the release notes https://confluence.atlassian.com/doc/confluence-release-notes-327.html You can download the latest version of Confluence Data Center and Server from the download center https://www.atlassian.com/software/confluence/download-archives. This vulnerability was found internally.

Frequently asked questions

What is CVE-2024-21683?: This High severity RCE (Remote Code Execution) vulnerability was introduced in version 5.2 of Confluence Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.2, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions. See the release notes https://confluence.atlassian.com/doc/confluence-release-notes-327.html You can download the latest version of Confluence Data Center and Server from the download center https://www.atlassian.com/software/confluence/download-archives. This vulnerability was found internally.
How severe is CVE-2024-21683?: CVE-2024-21683 has a CVSS 3.x base score of 8.8, 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 high, and availability high.
Is CVE-2024-21683 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 88% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21683?: CVE-2024-21683 primarily affects Atlassian Confluence Data Center. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21683?: 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.
Does CVE-2024-21683 have an EU (EUVD) identifier?: Yes. CVE-2024-21683 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19299.
When was CVE-2024-21683 published?: CVE-2024-21683 was published on 2024-05-21 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:lts:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:8.7.1:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:8.7.2:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:8.8.0:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:8.8.1:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:lts:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:8.7.1:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:8.7.2:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:8.8.0:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:8.8.1:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:fisheye:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:crucible:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:lts:*:*:*
cpe:2.3:a:atlassian:jira_server:*:*:*:*:lts:*:*:*
cpe:2.3:a:atlassian:jira_service_management:*:*:*:*:data_center:*:*:*
cpe:2.3:a:atlassian:jira_service_management:*:*:*:*:server:*:*:*
cpe:2.3:a:atlassian:jira_service_management:5.15.2:*:*:*:server:*:*:*

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