High [CVE-2026-73662] FreePBX Music on Hold: Arbitrary command execution by authenticated administrator
This high-severity Red Hat Linux advisory covers CVE-2026-73662.
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Summary
A flaw was found in the FreePBX Music on Hold module. An authenticated administrator can exploit dangerous command-line options when configuring media players, such as /usr/bin/mpg123.
This allows the administrator to execute arbitrary commands as the asterisk service user by writing files, opening control channels, or creating Asterisk call files.
The Red Hat mpg123 and asterisk packages are not affected because the vulnerable code is solely in FreePBX's web interface, which is not shipped in any Red Hat product. mpg123 is merely invoked by FreePBX and behaves as designed. Red Hat severity: Important — CVSS 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
Weakness: CWE-78. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Red Hat products are not affected by this vulnerability. The vulnerable code is in the FreePBX Music on Hold module, which is not shipped in any Red Hat product.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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