CVE-2026-73661
Backup restore can disable FreePBX auth (AUTHTYPE=none), enabling authentication bypass.
Is CVE-2026-73661 being exploited?
Not confirmed. CVE-2026-73661 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2026-73661?
CVE-2026-73661 is rated High with a CVSS score of 8.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-73661?
Yes. A fix has been recorded for CVE-2026-73661. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-73661 affect?
CVE-2026-73661 affects FreePBX Framework <16.0.47, FreePBX Framework <17.0.30, FreePBX instances allowing backup restore or writable backup files. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-73661?
Upgrade Framework to 16.0.47/17.0.30; restrict backup file write/restore privileges and audit restores.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated user with backup-restore or write access can set AUTHTYPE=none to disable authentication and gain admin access to FreePBX UI.
Immediate action required
- affected< 16.0.47
- affected>= 17.0.1 and < 17.0.30
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.