CVE-2025-22166: High severity Atlassian Confluence Data Center vulnerability
This High severity DoS (Denial of Service) vulnerability was introduced in version 2.0 of Confluence Data Center. This DoS (Denial of Service) vulnerability, with a CVSS Score of 8.3, allows an attacker to cause a resource to be unavailable for its intended users by temporarily or indefinitely disrupting services of a host connected to a network. Atlassian recommends that Confluence Data Center 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 8.5: Upgrade to a release greater than or equal to 8.5.25 Confluence Data Center and Server 9.2: Upgrade to a release greater than or equal to 9.2.7 Confluence Data Center and Server 10.0: Upgrade to a release greater than or equal to 10.0.2 See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html]). You can download the latest version of Confluence Data Center from the download center ([https://www.atlassian.com/software/confluence/download-archives]). This vulnerability was reported via our Atlassian (Internal) program.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-22166?
CVE-2025-22166 has a high severity rating with a CVSS score of 8.3.
What versions of Confluence Data Center are affected by CVE-2025-22166?
CVE-2025-22166 affects Confluence Data Center versions starting from 2.0 up to 10.0.2.
How do I fix CVE-2025-22166?
To address CVE-2025-22166, it is recommended to update your Confluence Data Center to the latest patched version.
What type of vulnerability is CVE-2025-22166?
CVE-2025-22166 is classified as a Denial of Service (DoS) vulnerability.
What impact does CVE-2025-22166 have on users?
CVE-2025-22166 can make resources unavailable to intended users, potentially leading to service disruptions.