CVE-2025-66173

Severity CVSS v4.0:

Pending analysis

Type:

CWE-269 Improper Privilege Management

Publication date:

19/12/2025

Last modified:

19/12/2025

Description

There is a privilege escalation 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 gaining access to an unrestricted shell environment.

Impact

Vector 3.x

CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.20 MEDIUM
Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

6.20

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

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