CVE-2014-8415: Digium Asterisk

Medium severity, CVSS 5.0. EPSS: 3% chance of exploitation in the next 30 days.

Race condition in the chan_pjsip channel driver in Asterisk Open Source 12.x before 12.7.1 and 13.x before 13.0.1 allows remote attackers to cause a denial of service (assertion failure and crash) via a cancel request for a SIP session with a queued action to (1) answer a session or (2) send ringing.

Affected products

• Digium Asterisk: from 12.0.0, before 12.7.1 (fixed in 12.7.1); from 13.0.0, before 13.0.1 (fixed in 13.0.1)

Published 2014-11-24. Last modified 2026-06-17.