CVE-2022-24976: Atheme

Critical severity, CVSS 9.1. EPSS: 1.8% chance of exploitation in the next 30 days.

Atheme IRC Services before 7.2.12, when used in conjunction with InspIRCd, allows authentication bypass by ending an IRC handshake at a certain point during a challenge-response login sequence.

Affected products

• Atheme Atheme: from 7.2.0, before 7.2.12 (fixed in 7.2.12)

Published 2022-02-14. Last modified 2026-06-17.