CVE-2023-40018

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 version 1.10.10, FreeSWITCH allows remote users to trigger out of bounds write by offering an ICE candidate with unknown component ID. When an SDP is offered with any ICE candidates with an unknown component ID, FreeSWITCH will make an out of bounds write to its arrays. By abusing this vulnerability, an attacker is able to corrupt FreeSWITCH memory leading to an undefined behavior of the system or a crash of it. Version 1.10.10 contains a patch for this issue.

• CWE-787

• https://github.com/signalwire/freeswitch/releases/tag/v1.10.10Release Notes
• https://github.com/signalwire/freeswitch/security/advisories/GHSA-7mwp-86fv-hcg3Vendor Advisory
• https://github.com/signalwire/freeswitch/releases/tag/v1.10.10Release Notes
• https://github.com/signalwire/freeswitch/security/advisories/GHSA-7mwp-86fv-hcg3Vendor Advisory

Published

Sep 15, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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