CVE-2026-0826: Critical unauthenticated stack buffer overflow in HP Poly VVX and Trio VoIP Phones (FIXED)

Overview Rapid7 Labs conducted a zero-day research project against an HP Poly VVX 450 Voice over Internet Protocol VoIP phone. This research resulted in the discovery of a critical unauthenticated stack-based buffer overflow vulnerability, CVE-2026-0826. A remote attacker can leverage CVE-2026-08...