CVE-2026-116779FreeSWITCH: Inbound SIP MESSAGE can select the api chat proto and run FreeSWITCH API commands
Bekannt ausgenutzt — SignalWire FreeSwitch Code Injection Vulnerability
CISA hat am 09.11.2026 bestätigt, dass diese Schwachstelle in echten Angriffen genutzt wird. Frist für US-Bundesbehörden: 12.11.2026.
Erforderliche Maßnahme: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. This vulnerability affects an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/signalwire/freeswitch/security/advisories/GHSA-mg63-h38w-8p9p ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-116779
Beschreibung
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.
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
Betroffene Produkte und Versionen
| Hersteller | Produkt | Versionen | |
|---|---|---|---|
| freeswitch | freeswitch | < 1.11.3 | |
| signalwire | freeswitch | < 1.11.3 |
Referenzen und Patches
- https://github.com/signalwire/freeswitch/security/advisories/GHSA-mg63-h38w-8p9p MitigationThird Party Advisory
- https://github.com/signalwire/freeswitch/pull/3135 Patch
- https://github.com/signalwire/freeswitch/commit/7015f6a73ab3d67fed5fbfc277ecfb88a74c2a86 Patch
- https://github.com/signalwire/freeswitch/releases/tag/v1.11.3 Release Notes
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-116779 US Government Resource
CPE-Treffer (NVD) (1)
cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:*< 1.11.3