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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-47740 Detail

Description

KZTech JT3500V 4G LTE CPE 2.0.1 contains a session management vulnerability that allows attackers to reuse old session credentials without proper expiration. Attackers can exploit the weak session handling to maintain unauthorized access and potentially compromise device authentication mechanisms.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulnCheck
CVSS-B 6.9 MEDIUM
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.kzbtech.com/ VulnCheck
https://exchange.xforce.ibmcloud.com/vulnerabilities/198471 VulnCheck
https://neotel.mk/ VulnCheck
https://packetstormsecurity.com/files/161892/ VulnCheck
https://www.jatontech.com/ VulnCheck
https://www.vulncheck.com/advisories/kztech-jtv-g-lte-cpe-insufficient-session-expiration-vulnerability VulnCheck
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5646.php VulnCheck

Weakness Enumeration

CWE-ID CWE Name Source
CWE-613 Insufficient Session Expiration VulnCheck  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47740
NVD Published Date:
12/31/2025
NVD Last Modified:
12/31/2025
Source:
VulnCheck