CVE-2026-73662Authenticated FreePBX Music RCE via mpg123 and Asterisk Call Files

Description

FreePBX is an open source IP PBX. From 17.0.1 until 17.0.7, the FreePBX Music on Hold module permits dangerous command-line options for /usr/bin/mpg123 and other allowed players in validateCustomConfiguration() in Music.class.php. An authenticated administrator can use options that write files, open control channels, or create Asterisk call files because applicationUsesDisallowedPlayerOption() does not reject those arguments, resulting in arbitrary command execution as the asterisk service user. This issue is fixed in version 17.0.7.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/FreePBX/security-reporting/security/advisories/GHSA-p97w-rq48-p8q2 MitigationVendor Advisory
• https://github.com/FreePBX/music/commit/9f45605982202a34244ff22c4f635af0dfc1a733 Patch