Blink XT2 Sync Module up to 2.13.10 UART insufficiently protected credentials

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Blink XT2 Sync Module up to 2.13.10. It has been declared as critical. Affected by this vulnerability is some unknown processing of the component UART Handler. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. The CWE definition for the vulnerability is CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented 12/11/2019 (Website). The advisory is shared at This vulnerability is known as CVE-2019-3983 since 01/03/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

Upgrading to version 2.13.11 eliminates this vulnerability.

See 147014, 147015, 147016 and 147017 for similar entries.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Insufficiently protected credentials
CWE: CWE-522
ATT&CK: T1552

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: XT2 Sync Module 2.13.11


01/03/2019 🔍
12/11/2019 +342 days 🔍
12/12/2019 +1 days 🔍
12/12/2019 +0 days 🔍


Status: Not defined

CVE: CVE-2019-3983 (🔍)
See also: 🔍


Created: 12/12/2019 09:10 AM
Updated: 12/12/2019 09:15 AM
Changes: 12/12/2019 09:10 AM (40), 12/12/2019 09:15 AM (17)
Complete: 🔍


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