Unauthenticated SQL execution via login name parameter
Published Jul 21, 2026 · Updated Jul 21, 2026
SQL injection in Linknat VOS3000 and VOS2009 through 2.1.2.0 allows remote attackers to execute arbitrary SQL via the login name parameter. The login handler incorporates the POST name value into a database query without neutralizing SQL and exposes results through a later session request. No authentication or user interaction is required, and injected queries run with DBA privileges, exposing plaintext credentials and other database content.
Summary
What happened
SQL injection in Linknat VOS3000 and VOS2009 through 2.1.2.0 allows remote attackers to execute arbitrary SQL via the login name parameter. The login handler incorporates the POST name value into a database query without neutralizing SQL and exposes results through a later session request. No authentication or user interaction is required, and injected queries run with DBA privileges, exposing plaintext credentials and other database content.
The record
- CVE
- CVE-2016-20096
- Published
- Jul 21, 2026
- Updated
- Jul 21, 2026
- Vendor
- Kunshi Network Technology Co., Ltd.
- Product
- VOS2009
- Classifications
- CWE-89, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 21, 2026CVE publishedPublication date reported by the CVE source.
- Jul 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.1.1.5
- Affected versionversion=2.1.1.8
- Affected versionversion=2.1.2.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- WooYun VOS3000 and VOS2009 SQL injection proofproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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