Vulnary
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Critical· 9.3

CVE-2016-20096

Linknat VOS3000 and VOS2009 devices, firmware versions 2.1.2.0 and earlier, have an unauthenticated SQL injection in the login endpoint. Attackers can send crafted POST requests to inject SQL, retrieve results, and extract credentials and database data.

publishedJul 21, 2026
last modifiedJul 23, 2026
sourcesNVD
severity · cvss
9.3
critical · how bad it is
exploitation · epss
<1%
31th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 4, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

Linknat VOS3000 and VOS2009 devices, firmware versions 2.1.2.0 and earlier, used by network administrators and IT staff.

02

Real-world impact

An attacker can run arbitrary SQL commands, extract plaintext credentials, and read any database content, effectively gaining DBA-level access.

03

Why this severity

The CVSS score of 9.3 reflects the vulnerability’s high impact: it is unauthenticated, remote, and allows attackers to execute arbitrary SQL commands, giving them full database control.

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredNone
User interactionNone needed
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →