#VU115219 Authentication Bypass by Spoofing in Openfire - CVE-2025-59154
Published: September 15, 2025
Vulnerability identifier: #VU115219
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-59154
CWE-ID: CWE-290
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Openfire
Openfire
Software vendor:
Ignite Realtime
Ignite Realtime
Description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect parsing of CN data within the X.509 client certificate. A remote attacker can supply a specially crafted certificate with embedded CN= inside another attribute value (e.g. OU="CN=admin,"), which will lead to the application extracting "admin" from the certificate and allowing an attacker to impersonate another user.
Remediation
Install updates from vendor's website.