CVE-2026-116788: fallo de gravedad alta en signalwire freeswitch
FreeSWITCH: Pre-authentication heap buffer overflow in core XML empty-entity decoding
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.2epss 0.4%
FreeSWITCH is an open-source software telecommunications platform. Before version 1.11.2, an integer underflow in switch_xml_decode() can cause an undersized heap allocation when an XML document declares an entity with an empty replacement value. Subsequent copying overruns the allocated buffer. An unauthenticated attacker who can reach a SIP profile with presence management enabled and DTD processing permitted can trigger the vulnerability through a crafted SIP PUBLISH request. Exploitation can corrupt heap memory and terminate the FreeSWITCH process, interrupting all active calls. This vulnerability is fixed in version 1.11.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Productos afectados
signalwire · freeswitchCVEs relacionadas — signalwire freeswitch
En el mismo producto, de las más peligrosas a las menos.
CVE-2021-37624HIGHFreeSWITCH does not authenticate SIP MESSAGE requests, leading to spam and message spoofingEPSS 3.8%CVE-2021-41105HIGHFreeSWITCH susceptible to Denial of Service via invalid SRTP packetsEPSS 2.5%CVE-2021-41157MEDIUMFreeSWITCH does not authenticate SIP SUBSCRIBE requests by defaultEPSS 1.7%CVE-2021-41145HIGHFreeSWITCH susceptible to Denial of Service via SIP floodingEPSS 1.7%CVE-2023-51443HIGHFreeSWITCH susceptible to Denial of Service via DTLS Hello packets during call initiationEPSS 1.5%CVE-2026-116779CRITICALFreeSWITCH: Inbound SIP MESSAGE can select the api chat proto and run FreeSWITCH API commandsEPSS 1.3%