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High CVSS 7.6

CVE-2026-73662

NVD analysis in progress

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.

What this means

Exposure
Exploitable remotely over the network, with an ordinary user account and with no action from the victim. It also depends on circumstances the attacker does not control.
Impact
An attacker can read sensitive data and modify or destroy data.
Weakness
Unfiltered input reaches the system shell, letting the attacker run their own commands on the server.
Likelihood
Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
13 August 2026
CVSS
7.6 (v4.0) CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS
0.66% probability of exploitation within 30 days · above 49% of all CVEs
Weakness
CWE-78
Sources
nvd
References

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