CVE-2017-16564: Grandstream HT802 Firmware

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Stored Cross-site scripting (XSS) vulnerability in /cgi-bin/config2 on Vonage (Grandstream) HT802 devices allows remote authenticated users to inject arbitrary web script or HTML via the DHCP vendor class ID field (P148).

Affected products

• Grandstream HT802 Firmware: affected versions not specified

Published 2017-11-06. Last modified 2026-06-17.