Auth bypass in Hikvision Ds-7104hghi-F1
CVE-2025-66174
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.
Vulnerability class: Broken Authentication
EPSS: 0.003 (24.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
Affected products
- Hikvision Ds-7104hghi-f1 — versions Versions below V4.30.122_201107 (including V4.30.122_201107)
- Hikvision Ds-7104hghi-f1_firmware
- Hikvision Ds-7204hghi-f1 — versions Versions below V4.30.122_201107 (including V4.30.122_201107)
- Hikvision Ds-7204hghi-f1_firmware
Weakness classification (CWE)
References
- hsrc@hikvision.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-66174?
- CVE-2025-66174 is a medium-severity vulnerability in Hikvision Ds-7104hghi-F1, classified under Improper Authentication. CVSS score: 6.5/10. Published 2025-12-19.
- How severe is CVE-2025-66174?
- Medium severity. CVSS v3 base score is 6.5 out of 10.