What’s Vulnerable › Vulnerabilities

CVE-1999-0679

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 1999-08-13 · updated 2026-06-16

Description

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: through 6.0beta58; 5.03p7

References

• http://www.efnet.org/archive/servers/hybrid/ChangeLog
• http://www.securityfocus.com/bid/581
• http://www.efnet.org/archive/servers/hybrid/ChangeLog
• http://www.securityfocus.com/bid/581

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