CVE-2026-116779

FreeSWITCH: Inbound SIP MESSAGE can select the api chat proto and run FreeSWITCH API commands

CVSS 3.1 9.8 CRITICALCheck source for fixed versionsCISA KEV

Original advisory

cve-program · CVE-2026-116779

Published

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 1.11.3, sofia_presence_handle_sip_i_message() split the To user of an inbound SIP MESSAGE on a plus sign and treated the left side as a chat protocol selector. Selecting the api chat proto reached switch_api_execute(), allowing a peer whose MESSAGE was accepted to run FreeSWITCH API commands, including operating-system command sinks, with the daemon's privileges. Inbound chat is enabled on the stock internal and external profiles, and any authenticated profile account is sufficient; stock directory users without password material can also remove that barrier in affected configurations. The flaw permits configuration and credential disclosure, arbitrary call control, and command execution, and exploitation has been observed in the wild. This issue is fixed in version 1.11.3.

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CVE-2026-116779

Listed in CISA KEV · added 9 Nov 2026 · SignalWire · FreeSwitch

SignalWire FreeSwitch contains a code injection vulnerability that permits configuration and credential disclosure, arbitrary call control, and command execution.

CISA source · CISA-cited reference

No EPSS score is available here for this CVE.

Saved 09 Nov 2026 17:05:03 UTC · View this risk record (JSON)

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CVE-2026-116779 · 09 Nov 2026 17:05:03 UTC

Advisory history

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10 Nov 2026 06:02:11 UTC