CVE-2025-66173

MEDIUM EPSS 8.6%
Published Dec 19, 20256mo ago · Modified Jun 17, 20261w ago
6.2 CVSS 3.1
Medium
Find Similar
Published Dec 19, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.2
Exploitability
0.3
Impact
5.9
Vector string
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector Physical
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
8.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-269 Improper Privilege Management Authorization

Affected Products 4

VendorProductVersionRange
hikvisionds-7104hghi-f1_firmware* ≤4.30.122_201107
hikvisionds-7104hghi-f1*any
hikvisionds-7204hghi-f1_firmware* ≤4.30.122_201107
hikvisionds-7204hghi-f1*any

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.