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TI-2021-20548 Aliases CVE-2021-45461GHSA-pph6-2c9x-fm9c

FreePBX, when restapps (aka Rest Phone Apps) 15.0.19.87, 15.0.19.88, 16.0.18.40, or…

Priority MEDIUM 61Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

FreePBX, when restapps (aka Rest Phone Apps) 15.0.19.87, 15.0.19.88, 16.0.18.40, or 16.0.18.41 is installed, allows remote attackers to execute arbitrary code, as exploited in the wild in December 2021. The fixed versions are 15.0.20 and 16.0.19.

Why it matters now

EPSS 0.21492 97th percentileScored 2026-11-08
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:sangoma:restapps:15.0.19.87:*:*:*:*:*:*:*15.0.19.87VulnerableSangoma
cpe:2.3:a:sangoma:restapps:15.0.19.88:*:*:*:*:*:*:*15.0.19.88VulnerableSangoma
cpe:2.3:a:sangoma:restapps:16.0.18.40:*:*:*:*:*:*:*16.0.18.40VulnerableSangoma
cpe:2.3:a:sangoma:restapps:16.0.18.41:*:*:*:*:*:*:*16.0.18.41VulnerableSangoma
cpe:2.3:a:sangoma:freepbx:-:*:*:*:*:*:*:*not specified by NVDRunning onSangoma
cpe:2.3:a:sangoma:pbxact:-:*:*:*:*:*:*:*not specified by NVDRunning onSangoma
  • cpe:2.3:a:sangoma:restapps:15.0.19.87:*:*:*:*:*:*:* Versions 15.0.19.87 Vulnerable ·Sangoma
  • cpe:2.3:a:sangoma:restapps:15.0.19.88:*:*:*:*:*:*:* Versions 15.0.19.88 Vulnerable ·Sangoma
  • cpe:2.3:a:sangoma:restapps:16.0.18.40:*:*:*:*:*:*:* Versions 16.0.18.40 Vulnerable ·Sangoma
  • cpe:2.3:a:sangoma:restapps:16.0.18.41:*:*:*:*:*:*:* Versions 16.0.18.41 Vulnerable ·Sangoma
  • cpe:2.3:a:sangoma:freepbx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Sangoma
  • cpe:2.3:a:sangoma:pbxact:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Sangoma

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-45461
  2. 2026-10-03 Alias added: GHSA-pph6-2c9x-fm9c

References

Exploit 1

Advisory 2

  • TI-2020-08572 The restapps (aka Rest Phone apps) module for Sangoma FreePBX and PBXact 13, 14, and 15… CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences