Is there a public exploit for CVE-2026-116779?

Yes. Proof-of-concept code for CVE-2026-116779 has been published publicly.

Is there a proof of concept for CVE-2026-116779?

Yes — 2 proof-of-concept entries are linked on this page, from public repositories and community submissions. They are listed for authorised testing only.

How severe is CVE-2026-116779?

CVE-2026-116779 scores CVSS 9.8 (v3.1), rated critical. EPSS puts the chance of exploitation in the next 30 days at 1.3%.

What does CVE-2026-116779 affect?

CVE-2026-116779 affects signalwire freeswitch.

9.8 Critical

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software…

CVE-2026-116779

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, sofiapresencehandlesipimessage() 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 switchapiexecute(), 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.

Proof-of-concept code is published

Public PoC

Public PoCmajidrahimi5020-lgtm/Poc-exploit-for-CVE-2026-116779-FreeSWITCH-1 stars
Public PoChackzuoji/freeswitch-cve-2026-116779-POC1 stars

Signals come from Exploit-DB, Metasploit, Nuclei and published proof-of-concept repositories. Their absence means nothing was found, not that nothing exists.

Assessment

CVSS: 9.8 (v3.1)
Severity: Critical
EPSS: 1.3% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Public PoC
Published: 5 November 2026
Last updated: 7 November 2026
Affected: signalwire · freeswitch
Assigner: GitHub_M

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

At the source

EUVD (ENISA)

References

Community proofs of concept

No community proof of concept yet. If you have one for a published vulnerability and the right to share it, add it below — it will appear here once reviewed.

Submit a proof of concept

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Query this programmatically

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