CVE-2003-0709: Whois

High severity, CVSS 7.5. EPSS: 2.8% chance of exploitation in the next 30 days.

Buffer overflow in the whois client, which is not setuid but is sometimes called from within CGI programs, may allow remote attackers to execute arbitrary code via a long command line option.

Affected products

• Whois Whois: version 4.5.7 only; version 4.6.6 only

Published 2003-10-20. Last modified 2026-06-16.