CVE-2017-5196: Irssi

High severity, CVSS 7.5. EPSS: 5.1% chance of exploitation in the next 30 days.

Irssi 0.8.18 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via vectors involving strings that are not UTF8.

Affected products

• Irssi Irssi: from 0.8.18, before 0.8.21 (fixed in 0.8.21)

Published 2017-03-03. Last modified 2026-06-17.