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

CVE-2023-47304 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2023-47304?

Yes, a public proof-of-concept exploit is available for CVE-2023-47304. Prioritise patching immediately. EPSS: 0.3%.

Vdv23 Firmware CVE-2023-47304

HIGH

Improper Authentication (CWE-287)

2023-12-05 cve@mitre.org

Authentication Bypass Vdv23 Firmware

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 05, 2023 - 04:15 nvd

HIGH 7.8

DescriptionNVD

AnalysisAI

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. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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 include: Vonage Vdv23 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.