Medium severity6.2NVD Advisory· Published Dec 19, 2025· Updated Jun 17, 2026

CVE-2025-66173

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.

Affected products

Hikvision/Ds 7104hghi F1 Firmware
cpe:2.3:o:hikvision:ds-7104hghi-f1_firmware:*:*:*:*:*:*:*:*
Range: <=4.30.122_201107
Hikvision/Ds 7204hghi F1 Firmware
cpe:2.3:o:hikvision:ds-7204hghi-f1_firmware:*:*:*:*:*:*:*:*
Range: <=4.30.122_201107
Hikvision/DS-7204HGHI-F1cpe-rescue2 versions
Versions below V4.30.122_201107 (including V4.30.122_201107)+ 1 more
- (no CPE)range: Versions below V4.30.122_201107 (including V4.30.122_201107)
- (no CPE)range: Versions below V4.30.122_201107 (including V4.30.122_201107)
Hikvision/DVR productsllm-create

Patches

Vulnerability mechanics

References

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

News mentions

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ransomware	0.000