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Vulnerability details

CVE-2026-116790

signalwire freeswitch

FreeSWITCH: Inbound ICE connectivity checks are accepted without verifying STUN MESSAGE-INTEGRITY

CVSS 3.1
9.1Critical

Official description

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.

CVSS scores

ScoreVersionSourceVector
9.1Critical 3.1 CVEProject cvelistV5 (CNA) (GitHub_M) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

VendorProductVersionsSource
signalwire freeswitch < 1.11.2 CVEProject cvelistV5 (CNA)

References and advisories

3
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Details

Published
2026-11-05
Last updated
2026-11-09
State
Published
Assigner (CNA)
GitHub_M
Kolun priority
21 · Low

Exploit prediction (EPSS)

0.34%
Probability of exploitation in 30 days
27.7%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-290
    Authentication Bypass by Spoofing
  • CWE-347
    Improper Verification of Cryptographic Signature