Riskcovery

CVE-2025-22166

State
Published
Severity
8.3 High
Published
Oct 21, 2025
Updated
Oct 21, 2025
Reserved
Jan 1, 2025

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
4.08.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Hatlassian

Weaknesses

  • CWE-405 Asymmetric Resource Consumption (Amplification)

Affected Products

ProductVersions
Confluence Data CenterAtlassian
  • 9.5.1 to 9.5.4Affected
  • 9.4.0 to 9.4.1Affected
  • 9.3.1 to 9.3.2Affected
  • 9.2.0 to 9.2.6Affected
  • 9.1.0 to 9.1.1Affected
  • 9.0.1 to 9.0.3Affected
  • 8.9.0 to 8.9.8Affected
  • 8.8.0 to 8.8.1Affected
  • 8.7.1 to 8.7.2Affected
  • 8.6.1 to 8.6.2Affected
  • 8.5.3 to 8.5.24Affected
  • 7.19.16 to 7.19.30Affected
  • 10.0.2 to 10.0.3Not affected
  • 9.2.7 to 9.2.9Not affected
  • 8.5.25 to 8.5.27Not affected

References

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