Linknat VOS3000 and VOS2009 through version 2.1.2.0 contain an unauthenticated SQL injection vulnerability that allows remote attackers to execute arbitrary SQL commands by manipulating the name parameter in a POST request to the login endpoint. Attackers can inject malicious SQL through the login form and retrieve injected query results from a subsequent session request, enabling extraction of plaintext credentials and other database content with DBA-level privileges.

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Fixes

Solution

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Workaround

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History

Thu, 23 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Kunshi Network Technology
Kunshi Network Technology linknat Vos3000
Kunshi Network Technology Co., Ltd.
Kunshi Network Technology Co., Ltd. linknat Vos2009
Vendors & Products Kunshi Network Technology
Kunshi Network Technology linknat Vos3000
Kunshi Network Technology Co., Ltd.
Kunshi Network Technology Co., Ltd. linknat Vos2009

Wed, 22 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 21 Jul 2026 19:15:00 +0000

Type Values Removed Values Added
Description Linknat VOS3000 and VOS2009 through version 2.1.2.0 contain an unauthenticated SQL injection vulnerability that allows remote attackers to execute arbitrary SQL commands by manipulating the name parameter in a POST request to the login endpoint. Attackers can inject malicious SQL through the login form and retrieve injected query results from a subsequent session request, enabling extraction of plaintext credentials and other database content with DBA-level privileges.
Title Linknat VOS3000/VOS2009 2.1.2.0 SQL Injection via login.jsp
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-07-22T19:06:24.973Z

Reserved: 2026-07-21T18:49:01.724Z

Link: CVE-2016-20096

cve-icon Vulnrichment

Updated: 2026-07-22T19:06:22.353Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-24T03:15:02Z

Weaknesses