Vulnerability in Atlassian Confluence Data Center
CVE-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, with a CVSS Score of 8.3, allows an attacker to cause a resource to be unavail…
EPSS: 0.005 (37.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Atlassian Confluence Data Center — versions 9.5.1 to 9.5.4, 9.4.0 to 9.4.1, 9.3.1 to 9.3.2
- Atlassian Confluence_data_center
- Atlassian Confluence_server
Weakness classification (CWE)
References
- security@atlassian.com (Vendor Advisory)
- security@atlassian.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-22166?
- CVE-2025-22166 is a high-severity vulnerability in Atlassian Confluence Data Center, classified under Asymmetric Resource Consumption (Amplification). CVSS score: 7.5/10. Published 2025-10-21.
- How severe is CVE-2025-22166?
- High severity. CVSS v3 base score is 7.5 out of 10.