CVE-2019-15297: Digium Asterisk

Medium severity, CVSS 6.5. EPSS: 3.4% chance of exploitation in the next 30 days.

res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash occurs because of a NULL session media object dereference.

Affected products

• Digium Asterisk: from 15.0.0, up to and including 15.7.3; from 16.0.0, up to and including 16.5.0

Published 2019-09-09. Last modified 2026-06-17.