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CVE-2025-66174

Published: Dec 19, 2025Updated: Dec 23, 2025 Sources: CVE List NVDCWE-287
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 77.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-287

Affected Products

ds-7104hghi-f1 firmwarehikvisionICS / OT / IoT
ds-7204hghi-f1 firmwarehikvisionICS / OT / IoT
DS-7104HGHI-F1HikvisionICS / OT / IoT
DS-7204HGHI-F1HikvisionICS / OT / IoT
hikvisioncommercialCNICS / OT / IoTaka hikvision cameras, hikcentral

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Dec 19, 2025
Last Updated
Dec 23, 2025

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