Unauthenticated RCE Exploited in Sangoma Switchvox VoIP Platform

Wed, 02 Sep 2026 15:05:08 +0000

Engineer — Act: If you run Sangoma Switchvox SMB Edition 8.3, patch immediately — a public PoC exists and active exploitation is reported. Restrict network access to the Switchvox admin interface as an interim control while a patch is applied.
SOC/IR — Act: Active exploitation is deploying reverse shells from VoIP infrastructure; hunt for anomalous outbound connections originating from Switchvox hosts and sweep network logs for unexpected C2 traffic since the PoC went public.
Leader — Skip
Signals: CVE-2026-9586 — CISA KEV: not listed, EPSS 0.01, public PoC on GitHub

Voip on CuraSec