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Vulnerability DatabaseCVE-2025-22166

CVE-2025-22166: 
Confluence Server vulnerability analysis and mitigation

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.

Source: NVD

Related Confluence Server vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2024-21683HIGH8.8
  • Atlassian Fisheye & CrucibleAtlassian Fisheye & Crucible
  • cpe:2.3:a:atlassian:confluence_server
NoYesMay 21, 2024
CVE-2024-21686HIGH8.7
  • Confluence ServerConfluence Server
  • cpe:2.3:a:atlassian:confluence_server
NoYesJul 16, 2024
CVE-2025-22166HIGH8.3
  • Confluence ServerConfluence Server
  • cpe:2.3:a:atlassian:confluence_server
NoYesOct 21, 2025
CVE-2024-21690HIGH8.2
  • Confluence ServerConfluence Server
  • cpe:2.3:a:atlassian:confluence_server
NoYesAug 21, 2024
CVE-2024-21703MEDIUM6.4
  • Confluence ServerConfluence Server
  • cpe:2.3:a:atlassian:confluence_server
NoYesNov 27, 2024

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