CVE-2025-66174

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 v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Weakness Type (CWE)

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
hikvision	ds-7104hghi-f1_firmware	< 4.30.122_201107
hikvision	ds-7104hghi-f1	All
hikvision	ds-7204hghi-f1_firmware	< 4.30.122_201107
hikvision	ds-7204hghi-f1	All

References

Advisories & Patches

https://www.hikvision.com/en/support/cybersecurity/security-advisory/serial-port-privilege-escalation-vulnerabilities-in-some-hikvision-nvr-devices/

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-66174? +

CVE-2025-66174 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-66174? +

CVE-2025-66174 affects products from hikvision, specifically: ds-7104hghi-f1, ds-7104hghi-f1_firmware, ds-7204hghi-f1, ds-7204hghi-f1_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-66174? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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