What’s Vulnerable › Vulnerabilities

CVE-2023-47304

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-12-05 · updated 2026-06-17
• Weakness: CWE-287

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.

Affected products

• Vonage Vdv23 Firmware: vdv21-3.2.11-0.5.1

References

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

Get alerted when CVE-2023-47304 or the next vulnerability affects your stack