PT-2025-54421 · Kztech · Kztech Jt3500V 4G Lte Cpe

Published 2025-12-31 · Updated 2025-12-31 · CVE-2021-47740

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions KZTech JT3500V 4G LTE CPE version 2.0.1

Description The KZTech JT3500V 4G LTE CPE contains a flaw in its session management. This allows attackers to reuse previously valid session credentials because of improper session expiration. Successful exploitation could allow an attacker to maintain unauthorized access and compromise device authentication.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

Insufficient Session Expiration

Weakness Enumeration

CWE-613

Related Identifiers

CVE-2021-47740

Affected Products

Kztech Jt3500V 4G Lte Cpe

References · 9

• 🔥 https://packetstormsecurity.com/files/161892 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47740 · Security Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/198471 · Note
• http://kzbtech.com · Note
• https://jatontech.com · Note
• https://neotel.mk · Note
• https://twitter.com/CVEnew/status/2006495384269467850 · Twitter Post
• https://vulncheck.com/advisories/kztech-jtv-g-lte-cpe-insufficient-session-expiration-vulnerability · Note
• https://zeroscience.mk/en/vulnerabilities/ZSL-2021-5646.php · Note