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    CVE-2021-45461

    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.

    Published:Dec 22, 2021
    Last Modified:Nov 21, 2024
    EPS:Dec 22, 2021
    EPSS Score:0.04975
    CVSS Score:9.8

    Affected Products

    Vendor
    Sangoma
    Product
    Freepbx
    Vendor
    Sangoma
    Product
    Pbxact
    Vendor
    Sangoma
    Product
    Restapps

    Exploits

    https://community.freepbx.org/t/0-day-freepbx-exploit/80092https://community.freepbx.org/t/0-day-freepbx-exploit/80092

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-44237 (CVSS 7.6) — FreePBX is an open source IP PBX. Prior to 17.0.8, the FreePBX api module's OAuth2 implementation does not suf…
    CVE-2026-44238 (CVSS 8.5) — FreePBX is an open source IP PBX. Prior to 16.0.50 and 17.0.11, the CDR Reports module page allows SQL injecti…
    CVE-2026-44239 (CVSS 7.6) — FreePBX is an open source IP PBX. Prior to 16.0.22 and 17.0.5, the Dashboard module's getcontent AJAX handler …
    CVE-2026-46376 (CVSS 9.3) — FreePBX is an open source IP PBX. From 15.0.42 to before 16.0.45 and 17.0.7, unauthenticated users may be able…
    CVE-2026-28287 (CVSS 8.6) — FreePBX is an open source IP PBX. From versions 16.0.17.2 to before 16.0.20 and from version 17.0.2.4 to befor…
    CVE-2026-28284 (CVSS 8.6) — FreePBX is an open source IP PBX. Prior to versions 16.0.10 and 17.0.5, the FreePBX logfiles module contains s…
    CVE-2026-28210 (CVSS 8.6) — FreePBX is an open source IP PBX. Prior to versions 16.0.49 and 17.0.7, FreePBX module cdr (Call Data Record) …
    CVE-2026-28209 (CVSS 7.5) — FreePBX is an open source IP PBX. From versions 16.0.17.2 to before 16.0.20 and from version 17.0.2.4 to befor…
    CVE-2025-55210 (CVSS 2) — FreePBX is an open-source web-based graphical user interface (GUI) that manages Asterisk. Prior to 17.0.5 and …
    CVE-2025-67736 (CVSS 8.6) — The FreePBX module tts (Text to Speech) for FreePBX, an open-source web-based graphical user interface (GUI) t…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High