CVE-2019-15717: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 2.5% chance of exploitation in the next 30 days.

Irssi 1.2.x before 1.2.2 has a use-after-free if the IRC server sends a double CAP.

Affected products

• Canonical Ubuntu Linux: version 19.04 only
• Irssi Irssi: from 1.2.0, before 1.2.2 (fixed in 1.2.2)

Published 2019-08-29. Last modified 2026-06-17.