CVE-2021-47740

KZTech JT3500V 4G LTE CPE 2.0.1 Insufficient Session Expiration Vulnerability

Published Dec 31, 2025 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title KZTech JT3500V 4G LTE CPE 2.0.1 Insufficient Session Expiration Vulnerability
Weaknesses CWE-613
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.9, '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'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jan 2, 2026, 8:42 PM
Reserved
Dec 23, 2025, 1:24 PM
Status
Deferred
Published
Dec 31, 2025, 7:15 PM
Modified
Jun 17, 2026, 4:18 AM