CVE-2023-49294: Digium Asterisk

High severity, CVSS 7.5. EPSS: 45.3% chance of exploitation in the next 30 days.

Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read. Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain a fix for this issue.

Affected products

• Digium Asterisk: before 18.20.1 (fixed in 18.20.1); from 19.0.0, before 20.5.1 (fixed in 20.5.1); version 21.0.0 only
• Sangoma Certified Asterisk: version 13.13.0 only; version 16.8.0 only; version 18.9 only

Published 2023-12-14. Last modified 2026-06-17.