CVE-2025-22166
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-21

Last updated on: 2025-12-05

Assigner: Atlassian

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.
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Meta Information
Published
2025-10-21
Last Modified
2025-12-05
Generated
2026-05-07
AI Q&A
2025-10-21
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
atlassian confluence_data_center From 8.5.0 (inc) to 8.5.25 (exc)
atlassian confluence_data_center From 9.2.0 (inc) to 9.2.7 (exc)
atlassian confluence_data_center From 10.0.0 (inc) to 10.0.2 (exc)
atlassian confluence_server From 8.5.0 (inc) to 8.5.25 (exc)
atlassian confluence_server From 9.2.0 (inc) to 9.2.7 (exc)
atlassian confluence_server From 10.0.0 (inc) to 10.0.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-405 The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary's influence is "asymmetric."
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a High severity Denial of Service (DoS) issue in Confluence Data Center starting from version 2.0. It allows an attacker to disrupt the availability of services on a host connected to a network, making resources temporarily or indefinitely unavailable to intended users.


How can this vulnerability impact me? :

The impact of this vulnerability is that an attacker can cause a Denial of Service, making the affected Confluence Data Center services unavailable to legitimate users. This disruption can affect business operations relying on these services.


What immediate steps should I take to mitigate this vulnerability?

To mitigate this vulnerability, you should upgrade your Confluence Data Center instance to the latest version. If upgrading to the latest version is not possible, upgrade to one of the specified supported fixed versions: 8.5.25 or later for Confluence Data Center and Server 8.5, 9.2.7 or later for version 9.2, or 10.0.2 or later for version 10.0.


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0/70
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