What is CVE-2025-0663?

CVE-2025-0663 is a medium-severity vulnerability in Wso2 Identity Server. CVSS score: 6.8/10. Published 2025-09-23.

How severe is CVE-2025-0663?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Wso2 Identity Server

CVE-2025-0663

A cross-tenant authentication vulnerability exists in multiple WSO2 products due to improper cryptographic design in Adaptive Authentication. A single cryptographic key is used across all tenants to sign authentication cookies, allowing a…

EPSS: 0.000 (8.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Wso2 Identity Server — versions 0, 5.10.0, 5.11.0
Wso2 Identity Server As Key Manager — versions 0, 5.10.0
Wso2 Open Banking Iam — versions 2.0.0

References

security.docs.wso2.com/en/latest/security-announcements/security-advisories/202… (vendor-advisory)

Frequently asked questions

What is CVE-2025-0663?: CVE-2025-0663 is a medium-severity vulnerability in Wso2 Identity Server. CVSS score: 6.8/10. Published 2025-09-23.
How severe is CVE-2025-0663?: Medium severity. CVSS v3 base score is 6.8 out of 10.