CVE-2018-5205: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

When using incomplete escape codes, Irssi before 1.0.6 may access data beyond the end of the string.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.04 only; version 17.10 only
• Debian Debian Linux: version 9.0 only
• Irssi Irssi: before 1.0.6 (fixed in 1.0.6)

Published 2018-01-06. Last modified 2026-06-17.