---
id: CVE-2026-116790
title: >-
  FreeSWITCH: Inbound ICE connectivity checks are accepted without verifying
  STUN MESSAGE-INTEGRITY
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 1.11.2, FreeSWITCH's inbound ICE
  handling acc…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-290
  - CWE-347
vendor: signalwire
product: freeswitch
affected:
  - freeswitch < 1.11.2
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:40:51.226Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116790'
references:
  - url: >-
      https://github.com/signalwire/freeswitch/security/advisories/GHSA-rc25-33hp-6mv2
    label: >-
      https://github.com/signalwire/freeswitch/security/advisories/GHSA-rc25-33hp-6mv2
  - url: >-
      https://github.com/signalwire/freeswitch/commit/68ec688eb601767a28854e804a0e4df5872f5bc7
    label: >-
      https://github.com/signalwire/freeswitch/commit/68ec688eb601767a28854e804a0e4df5872f5bc7
  - url: 'https://github.com/signalwire/freeswitch/releases/tag/v1.11.2'
    label: 'https://github.com/signalwire/freeswitch/releases/tag/v1.11.2'
tags:
  - cve.org
ingestedAt: '2026-11-05T22:38:31.556Z'
epss: 0.00341
epssPercentile: 0.27762
---

## 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 1.11.2, FreeSWITCH's inbound ICE handling accepted every connectivity check without cryptographically validating its STUN MESSAGE-INTEGRITY attribute. A network peer able to reach an ICE-enabled leg's media port could forge an ICE connectivity check without SDP credentials, nominate its own address, redirect RTP and DTLS traffic, and terminate the legitimate media path. On unencrypted legs this enables eavesdropping and media injection, while all WebRTC and SIP legs that negotiate ICE are in scope. Version 1.11.2 introduces the remediation, which requires ice_verify_message_integrity=true.

## Affected

- `freeswitch < 1.11.2`

## Remediation

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