CVE-2025-22166
published 2025-10-21CVE-2025-22166: This High severity DoS (Denial of Service) vulnerability was introduced in version 2.0 of Confluence Data Center. This DoS (Denial of Service) vulnerability…
high8.3CVSS 4.0
AVNACLATNPRLUINVCNVINVAHSCNSINSAHEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
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
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | — | — |
| atlassian | confluence_data_center | >= 10.0.0 < 10.0.2 | 10.0.2 |
| atlassian | confluence_data_center | >= 8.5.0 < 8.5.25 | 8.5.25 |
| atlassian | confluence_data_center | >= 9.2.0 < 9.2.7 | 9.2.7 |
| atlassian | confluence_server | >= 10.0.0 < 10.0.2 | 10.0.2 |
| atlassian | confluence_server | >= 8.5.0 < 8.5.25 | 8.5.25 |
| atlassian | confluence_server | >= 9.2.0 < 9.2.7 | 9.2.7 |