CVE-2026-116782 FreeSWITCH: Pre-authentication invalid pointer dereference in mod_rtmp connect command handling
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116782?
CVE-2026-116782 is a high-severity vulnerability in signalwire freeswitch, published on 5 Nov 2026.
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, rtmp_i_connect() passed the first RTMP connect argument to amf0_object_get() without checking whether the AMF value was an object. A string or number in place of an AMF object caused union bytes from the message to be interpreted as node pointers and dereferenced. Any client with network access to an enabled mod_rtmp listener could send the malformed connect command before login; the module is disabled in the stock build and configuration. The invalid read reliably crashes FreeSWITCH and ends every active call, while no write, memory disclosure, or code execution has been demonstrated. This issue is fixed in version 1.11.2.
Which versions are affected by CVE-2026-116782?
It affects 1 product.
Products include Freeswitch.
How do I fix CVE-2026-116782?
No fix has been published for CVE-2026-116782 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116782 being exploited?
There is no known exploitation of CVE-2026-116782 in the wild and no public exploit code.
Other vulnerabilities in signalwire freeswitch
- CVE-2026-116779 SignalWire FreeSwitch Code Injection
- CVE-2026-49841 FreeSWITCH: Pre-authentication heap buffer overflow in `mod_verto` HTTP POST body read
- CVE-2019-19492 FreeSWITCH 1.6.10 through 1.10.1 has a default password in event_socket.conf.xml.
- CVE-2026-116785 FreeSWITCH: Pre-authentication heap out-of-bounds write in mod_xml_rpc WebSocket frame length handling
- CVE-2026-116790 FreeSWITCH: Inbound ICE connectivity checks are accepted without verifying STUN MESSAGE-INTEGRITY
Sources
Also known as GHSA-v7mq-h638-6fxp.