CVE-2007-4411: ircu 2.10.12.05 and earlier allows remote attackers to discover the hidden IP address of arbitrary +x users...

Security readout for executives and security teams

This CVE is a privacy weakness in legacy ircu IRC servers. A remote user may be able to uncover the real IP address of users marked +x, a mode intended to hide host information. The source bundle does not show system takeover, malware execution, or active exploitation. Exposure is likely limited to organizations still running ircu 2.10.12.05 or earlier, especially public IRC networks using +x for user privacy. The CVE bundle lists affected vendor/product as n/a, so asset confirmation is required. Prioritize verification if the organization runs public or privacy-sensitive IRC infrastructure. This is not an emergency based on the provided evidence, but it can undermine user anonymity expectations and create reputational risk. Mitigation focus: Identify any deployed ircu servers and record exact versions.; Review ircu project or vendor guidance for fixed versions or configuration mitigations.; Reduce public exposure of legacy IRC services during assessment..

Prepared

Jun 29, 2026, 04:07 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.