Multiple high-severity vulnerabilities in the Grandstream HT800 series of Analog Telephone Adaptors (ATAs) threaten home office and midrange users alike, with outages, eavesdropping and device takeover. The HT800 series of ATAs is designed for everyone from home or small-office users to medium-sized businesses, looking to connect their analog telephone devices to a VoIP network, unified communications system or other IP-based communications infrastructure.

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