CVE-2025-66174: Hikvision Ds-7104hghi-f1 Firmware

Medium severity, CVSS 6.8. EPSS: 0.4% chance of exploitation in the next 30 days.

There is an improper authentication vulnerability in some Hikvision DVR products. Due to the improper implementation of authentication for the serial port, an attacker with physical access could exploit this vulnerability by connecting to the affected products and run a series of commands.

Affected products

• Hikvision Ds-7104hghi-f1 Firmware: up to and including 4.30.122_201107
• Hikvision Ds-7204hghi-f1 Firmware: up to and including 4.30.122_201107

Published 2025-12-19. Last modified 2026-06-17.