Vulnerability 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.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-73664?
CVE-2026-73664 is a documented vulnerability. 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/aste...
How severe is CVE-2026-73664?
CVSS scoring is not yet available for CVE-2026-73664. Check NVD for updates.
Is there a patch for CVE-2026-73664?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.