CVE-2026-73662
Description
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.
Statement
The CVE-2026-73662 vulnerability is in the FreePBX Music on Hold module's PHP code (Music.class.php), which fails to sanitize command-line options passed to media players. 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.
Mitigation
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.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.2 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | High | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | High | N/A | N/A |
| Integrity Impact | High | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Confidentiality,Integrity,Availability,Non-Repudiation
Technical Impact: Execute Unauthorized Code or Commands; DoS: Crash, Exit, or Restart; Read Files or Directories; Modify Files or Directories; Read Application Data; Modify Application Data; Hide Activities
Attackers could execute unauthorized operating system commands, which could then be used to disable the product, or read and modify data for which the attacker does not have permissions to access directly. Since the targeted application is directly executing the commands instead of the attacker, any malicious activities may appear to come from the application or the application's owner.
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