CVE-2006-0458: The DCC ACCEPT command handler in irssi before 0.8.9+0.8.10rc5-0ubuntu4.1 in Ubuntu Linux, and possibly oth...

Security readout for executives and security teams

This CVE is a denial-of-service issue in the irssi IRC client. A remote attacker could send crafted DCC command arguments that crash the application. The documented impact is user-level application failure, not system takeover or data theft. Exposure is most likely on legacy Ubuntu systems running the affected irssi package, especially where users connect to untrusted IRC networks. Other distributions may be affected, but the bundle does not confirm exact versions or package names beyond Ubuntu. Treat this as a contained availability risk for legacy IRC client environments. It should be remediated through normal patch management unless irssi is used in operational workflows where client crashes could disrupt service monitoring or incident response. Mitigation focus: Apply the Ubuntu irssi update identified by USN-259-1.; Check other distribution advisories before assuming affected status.; Prioritize systems where irssi connects to untrusted IRC networks..

Prepared

Jun 29, 2026, 14:02 UTC (UTC+00:00)

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