← Vulnerability feed

Vulnerability record · CVE-2026-116790 · published 5 November 2026

CVE-2026-116790: Freeswitch authentication bypass by spoofing vulnerability

Freeswitch · Freeswitch

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.

9.1 CVSS 3.1 Critical EPSS 0.34% · top 72.0% CWE-290 · Authentication bypass by spoofingCWE-347 · Improper verification of cryptographic signature
9.1CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
10 Nov 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/signalwire/freeswitch/commit/68ec688eb601767a28854e804a0e4df5872f5bc7 Patch
https://github.com/signalwire/freeswitch/releases/tag/v1.11.2 Release Notes
https://github.com/signalwire/freeswitch/security/advisories/GHSA-rc25-33hp-6mv2 Vendor AdvisoryMitigation

Track CVE-2026-116790 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-116779Freeswitch command injection vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…KEVEPSS 2.5%9.8CVE-2026-49841Freeswitch heap-based buffer overflow vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.39%9.8CVE-2019-19492Freeswitch hard-coded credentials vulnerabilityFreeSWITCH 1.6.10 through 1.10.1 has a default password in event_socket.conf.xml.EPSS 29%9.1CVE-2026-116785Freeswitch heap-based buffer overflow vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 1.1%9.1CVE-2026-49840Freeswitch improper input validation vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.31%8.8CVE-2026-116786Freeswitch command injection vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.45%8.2CVE-2026-116788Freeswitch heap-based buffer overflow vulnerabilityFreeSWITCH is an open-source software telecommunications platform. Before version 1.11.2, an integer underflow in  switch_xml_decode()  can cause an …EPSS 0.41%8.2CVE-2026-116783Freeswitch out-of-bounds write vulnerabilityFreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation tha…EPSS 0.62%

Source: NIST National Vulnerability Database (record CVE-2026-116790), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.