Is CVE-2023-47304 actively exploited?

No active exploitation of CVE-2023-47304 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-47304 be exploited remotely?

No. CVE-2023-47304 requires local access to exploit.

What is the CVSS score of CVE-2023-47304?

CVE-2023-47304 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2023-47304

CWE-287Published: December 5, 2023· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An issue was discovered in Vonage Box Telephone Adapter VDV23 version VDV21-3.2.11-0.5.1, allows local attackers to bypass UART authentication controls and read/write arbitrary values to the memory of the device.

NVD Source

Technical Analysis

CVE-2023-47304 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.