How severe is CVE-2023-22512?

CVE-2023-22512 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-22512 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22512?

CVE-2023-22512 primarily affects Atlassian Confluence 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-2023-22512?

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-2023-22512 have an EU (EUVD) identifier?

Yes. CVE-2023-22512 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-26652.

When was CVE-2023-22512 published?

CVE-2023-22512 was published on 2024-01-16 and last updated on 2026-06-17.

CVE-2023-22512

CVE-2023-22512 is a high-severity vulnerability in Atlassian Confluence Data Center with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-26652
Weakness: CWE-400
Affected product: Atlassian Confluence Data Center
Published: 2024-01-16
Last modified: 2026-06-17

Description

This High severity DoS (Denial of Service) vulnerability was introduced in version 5.6.0 of Confluence Data Center and Server. With a CVSS Score of 7.5, this vulnerability allows an unauthenticated attacker to cause a resource to be unavailable for its intended users by temporarily or indefinitely disrupting services of a vulnerable host (Confluence instance) connected to a network, which has no impact to confidentiality, no 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: Confluence Data Center and Server 7.19: Upgrade to a release greater than or equal to 7.19.14 Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.1 Confluence Data Center and Server 8.6 or above: No need to upgrade, you're already on a patched version 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 reported via our Bug Bounty program.

Frequently asked questions

What is CVE-2023-22512?: This High severity DoS (Denial of Service) vulnerability was introduced in version 5.6.0 of Confluence Data Center and Server. With a CVSS Score of 7.5, this vulnerability allows an unauthenticated attacker to cause a resource to be unavailable for its intended users by temporarily or indefinitely disrupting services of a vulnerable host (Confluence instance) connected to a network, which has no impact to confidentiality, no 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: Confluence Data Center and Server 7.19: Upgrade to a release greater than or equal to 7.19.14 Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.1 Confluence Data Center and Server 8.6 or above: No need to upgrade, you're already on a patched version 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 reported via our Bug Bounty program.
How severe is CVE-2023-22512?: CVE-2023-22512 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-22512 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22512?: CVE-2023-22512 primarily affects Atlassian Confluence 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-2023-22512?: 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-2023-22512 have an EU (EUVD) identifier?: Yes. CVE-2023-22512 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-26652.
When was CVE-2023-22512 published?: CVE-2023-22512 was published on 2024-01-16 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

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