CVE-2024-8809: Cohesive Networks VNS3 Command Injection Remote Code Execution Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-11-22 · updated 2026-06-17
Weakness: CWE-78

Description

Cohesive Networks VNS3 Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cohesive Networks VNS3. Authentication is required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 8000 by default. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-24178.

Affected products

Cohesive Networks VNS3: from 4.6.1 before 6.2.8; from 6.6.0 before 6.6.7 — fixed in 6.2.8, 6.6.7

How to fix

Upgrade to a fixed version: Cohesive Networks VNS3 6.2.8, 6.6.7. Check the vendor advisory for mitigations.

References

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