What is the CVSS score of CVE-2019-3983?

CVE-2019-3983 has a CVSS 3.1 base score of 6.8 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.0%.

Is there a public PoC exploit available for CVE-2019-3983?

Yes, a public proof-of-concept exploit is available for CVE-2019-3983. Prioritise patching immediately. EPSS: 1.0%.

Blink Xt2 Sync Module Firmware CVE-2019-3983

MEDIUM

Use of Hard-coded Credentials (CWE-798)

2019-12-11 vulnreport@tenable.com

Authentication Bypass RCE Blink Xt2 Sync Module Firmware

6.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.8 MEDIUM

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

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 11, 2019 - 23:15 nvd

MEDIUM 6.8

DescriptionNVD

Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary code and commands on the device due to insufficient UART protections.

AnalysisAI

Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary code and commands on the device due to insufficient UART protections. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Use of Hard-coded Credentials (CWE-798), which allows attackers to gain access using credentials embedded in source code. Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary code and commands on the device due to insufficient UART protections. Affected products include: Amazon Blink Xt2 Sync Module Firmware. Version information: prior to 2.13.11.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Remove hard-coded credentials, use environment variables or secrets management, rotate exposed credentials immediately.