FreePBX is an open source IP PBX. From 17.0.5.34 until 17.0.11, the publicKeySave AJAX endpoint in Backup.class.php accepts an authenticated administrator's SSH public key and appends it to /home/asterisk/.ssh/authorized_keys for the asterisk system user without reliably enforcing backup-only command and source restrictions. The key grants persistent shell access that can execute arbitrary commands, access FreePBX and call data, modify system files, and disrupt services. This issue is fixed in version 17.0.11.

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History

Fri, 14 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 14 Aug 2026 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Freepbx
Freepbx backup
Vendors & Products Freepbx
Freepbx backup

Thu, 13 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
Description FreePBX is an open source IP PBX. From 17.0.5.34 until 17.0.11, the publicKeySave AJAX endpoint in Backup.class.php accepts an authenticated administrator's SSH public key and appends it to /home/asterisk/.ssh/authorized_keys for the asterisk system user without reliably enforcing backup-only command and source restrictions. The key grants persistent shell access that can execute arbitrary commands, access FreePBX and call data, modify system files, and disrupt services. This issue is fixed in version 17.0.11.
Title FreePBX: Authenticated Arbitrary SSH Key Injection via Backup Module
Weaknesses CWE-269
CWE-284
CWE-732
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-14T16:16:24.751Z

Reserved: 2026-08-13T14:04:09.606Z

Link: CVE-2026-73664

cve-icon Vulnrichment

Updated: 2026-08-14T16:16:18.599Z

cve-icon NVD

Status : Received

Published: 2026-08-13T22:17:28.087

Modified: 2026-08-14T17:20:36.147

Link: CVE-2026-73664

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-14T12:14:37Z

Weaknesses