CVE-2025-66173

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.2 MEDIUM
PHYSICAL
LOW
HIGH
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
hikvisionCNA
6.2 MEDIUM
PHYSICAL
LOW
HIGH
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 23%
VendorProductVersion
hikvisionds-7104hghi-f1_firmware
𝑥
≤ 4.30.122_201107
hikvisionds-7204hghi-f1_firmware
𝑥
≤ 4.30.122_201107
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.hikvision.com/en/support/cybersecurity/security-advisory/serial-port-privilege-escalation-vulnerabilities-in-some-hikvision-nvr-devices/