CVE-2023-3705: Information Disclosure Vulnerability in CP-Plus Network Video Recorder

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-24 · updated 2026-06-17
Weakness: CWE-200

Description

The vulnerability exists in CP-Plus NVR due to an improper input handling at the web-based management interface of the affected product. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted HTTP requests to the vulnerable device. Successful exploitation of this vulnerability could allow the remote attacker to obtain sensitive information on the targeted device.

Affected products

Cpplusworld Cp-Vnr-3104 Firmware: before b3223p22c02424 — fixed in b3223p22c02424
Cpplusworld Cp-Vnr-3108 Firmware: before b3223p22c02424 — fixed in b3223p22c02424
Cpplusworld Cp-Vnr-3208 Firmware: before b3223p22c02424 — fixed in b3223p22c02424

How to fix

Upgrade to a fixed version: Cpplusworld Cp-Vnr-3104 Firmware b3223p22c02424; Cpplusworld Cp-Vnr-3108 Firmware b3223p22c02424; Cpplusworld Cp-Vnr-3208 Firmware b3223p22c02424. Check the vendor advisory for mitigations.

References

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