CVE-2026-73662Network attack vectorHinoki check available

Authenticated command execution via unsafe player options

Published Aug 13, 2026 · Updated Aug 13, 2026

OS command injection in FreePBX Music on Hold before 17.0.7 allows remote authenticated users to execute commands as the Asterisk user. validateCustomConfiguration() accepts file-writing, control-channel, and call-file options for allowlisted players because applicationUsesDisallowedPlayerOption() fails to reject them. Administrator access to the FreePBX control panel is required; successful exploitation runs arbitrary commands with the asterisk service account.

CVSS severity7.5
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

OS command injection in FreePBX Music on Hold before 17.0.7 allows remote authenticated users to execute commands as the Asterisk user. validateCustomConfiguration() accepts file-writing, control-channel, and call-file options for allowlisted players because applicationUsesDisallowedPlayerOption() fails to reject them. Administrator access to the FreePBX control panel is required; successful exploitation runs arbitrary commands with the asterisk service account.

The record

CVE
CVE-2026-73662
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
FreePBX
Product
Music on Hold
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 17.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

FreePBX · Music on Holdversion=< 17.0.7

Published CVSS scores

7.5FreePBXCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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