CVE-2021-36513: Signalwire Freeswitch

High severity, CVSS 7.5. EPSS: 1.9% chance of exploitation in the next 30 days.

An issue was discovered in function sofia_handle_sip_i_notify in sofia.c in SignalWire freeswitch before 1.10.6, may allow attackers to view sensitive information due to an uninitialized value.

Affected products

• Signalwire Freeswitch: before 1.10.6 (fixed in 1.10.6)

Published 2021-10-18. Last modified 2026-06-17.