CVE-1999-0679: Hybrid Network Hybrid Ircd

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

Buffer overflow in hybrid-6 IRC server commonly used on EFnet allows remote attackers to execute commands via m_invite invite option.

Affected products

• Hybrid Network Hybrid Ircd: up to and including 6.0beta58; version 5.03p7 only

Published 1999-08-13. Last modified 2026-06-16.