CVE-2008-4748: Kvirc

High severity, CVSS 7.6. EPSS: 8.2% chance of exploitation in the next 30 days.

Format string vulnerability in the URI handler in KVirc 3.4.0, when set as the default application for processing IRC URIs, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via format string specifiers in the irc:// URI.

Affected products

• Kvirc Kvirc: version 3.4.0 only

Published 2008-10-27. Last modified 2026-06-16.