CVE-2023-47304

HIGH

Vonage VDV23 Firmware VDV21-3.2.11-0.5.1 - Unauthenticated Memory Read/Write via UART

Title source: llm

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.

References (1)

Core 1

Core References

Exploit

https://trojanhorsey.substack.com/p/cve-2023-47304-unsecured-uart-in

Scores

CVSS v3 7.8

EPSS 0.0029

EPSS Percentile 20.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-287

Status published

Products (1)

vonage/vdv23_firmware vdv21-3.2.11-0.5.1

Published Dec 05, 2023

Tracked Since Feb 18, 2026