Description

Wowza Streaming Engine 4.5.0 contains a local privilege escalation vulnerability that allows authenticated users to escalate privileges by replacing executable files due to improper file permissions granting full access to the Everyone group. Attackers can replace the nssm_x64.exe binary in the manager and engine service directories with malicious executables to execute code with LocalSystem privileges when services restart.

INFO

Published Date :

2026-03-15T18:34:21.181Z

Last Modified :

2026-03-16T14:30:30.462Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2016-20033 vulnerability.

Vendors Products
Wowza
  • Streaming Engine
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2016-20033.

URL Resource
http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5339.php cve-icon cve-icon
https://www.exploit-db.com/exploits/40132 cve-icon cve-icon
https://www.vulncheck.com/advisories/wowza-streaming-engine-local-privilege-escalation-via-nssm-x64-exe cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact