---
id: CVE-2026-116779
title: >-
  FreeSWITCH: Inbound SIP MESSAGE can select the api chat proto and run
  FreeSWITCH API commands
summary: >-
  FreeSWITCH is a Software Defined Telecom Stack enabling the digital
  transformation from proprietary telecom switches to a software implementation
  that runs on any commodity hardware. Prior to 1.11.3,
  sofia_presence_handle_sip_i_message()…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-77
  - CWE-78
  - CWE-749
vendor: signalwire
product: freeswitch
affected:
  - freeswitch < 1.11.3
exploitAvailable: true
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:30:25.492Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116779'
references:
  - url: >-
      https://github.com/signalwire/freeswitch/security/advisories/GHSA-mg63-h38w-8p9p
    label: >-
      https://github.com/signalwire/freeswitch/security/advisories/GHSA-mg63-h38w-8p9p
  - url: 'https://github.com/signalwire/freeswitch/pull/3135'
    label: 'https://github.com/signalwire/freeswitch/pull/3135'
  - url: >-
      https://github.com/signalwire/freeswitch/commit/7015f6a73ab3d67fed5fbfc277ecfb88a74c2a86
    label: >-
      https://github.com/signalwire/freeswitch/commit/7015f6a73ab3d67fed5fbfc277ecfb88a74c2a86
  - url: 'https://github.com/signalwire/freeswitch/releases/tag/v1.11.3'
    label: 'https://github.com/signalwire/freeswitch/releases/tag/v1.11.3'
tags:
  - cve.org
  - exploit-available
exploits:
  github: 1
  githubRepos:
    - >-
      https://github.com/majidrahimi5020-lgtm/Poc-exploit-for-CVE-2026-116779-FreeSWITCH-
  checkedAt: '2026-11-05T22:39:08.698Z'
ingestedAt: '2026-11-05T22:38:31.550Z'
---

## Overview

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.3, sofia_presence_handle_sip_i_message() split the To user of an inbound SIP MESSAGE on a plus sign and treated the left side as a chat protocol selector. Selecting the api chat proto reached switch_api_execute(), allowing a peer whose MESSAGE was accepted to run FreeSWITCH API commands, including operating-system command sinks, with the daemon's privileges. Inbound chat is enabled on the stock internal and external profiles, and any authenticated profile account is sufficient; stock directory users without password material can also remove that barrier in affected configurations. The flaw permits configuration and credential disclosure, arbitrary call control, and command execution, and exploitation has been observed in the wild. This issue is fixed in version 1.11.3.

## Affected

- `freeswitch < 1.11.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.