Is CVE-2025-66174 actively exploited?

CVE-2025-66174 has no public evidence of in-the-wild exploitation as of 2025-12-23.

What is the CVSS score for CVE-2025-66174?

CVE-2025-66174 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

How do I patch CVE-2025-66174?

Patch guidance is available from hikvision security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-66174.

CVE-2025-66174 - remediation guidance & executive summary

Q: Which products are affected by CVE-2025-66174?

2 products: hikvision ds-7104hghi-f1 firmware, hikvision ds-7204hghi-f1 firmware.

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: low
Weaknesses: CWE-287 · Improper Authentication

Metadata

Primary Vendor: HIKVISION
Published: 12/19/2025
Last Modified: 12/23/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-66174

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary