Vulnerability in Igniterealtime Openfire

CVE-2025-59154

Openfire is an XMPP server licensed under the Open Source Apache License. Openfire’s SASL EXTERNAL mechanism for client TLS authentication contains a vulnerability in how it extracts user identities from X.509 certificates. Instead of pars…

EPSS: 0.000 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-59154?
CVE-2025-59154 is a medium-severity vulnerability in Igniterealtime Openfire, classified under Authentication Bypass by Spoofing. CVSS score: 5.9/10. Published 2025-09-15.
How severe is CVE-2025-59154?
Medium severity. CVSS v3 base score is 5.9 out of 10.