CVE-2016-20033

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5339.php	Exploit Third Party Advisory
https://www.exploit-db.com/exploits/40132	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/wowza-streaming-engine-local-privilege-escalation-via-nssm-x64-exe	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:wowza:streaming_engine:4.5.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-16 14:17

Updated : 2026-03-19 14:16

NVD link : CVE-2016-20033

Mitre link : CVE-2016-20033

CVE.ORG link : CVE-2016-20033

JSON object : View

Products Affected

wowza

streaming_engine

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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