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.

Project Subscriptions

Vendors Products
Streaming Engine Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 16 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 15 Mar 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title Wowza Streaming Engine 4.5.0 Local Privilege Escalation via nssm_x64.exe
First Time appeared Wowza
Wowza streaming Engine
Weaknesses CWE-639
CPEs cpe:2.3:a:wowza:streaming_engine:4.5.0:*:*:*:*:*:*:*
Vendors & Products Wowza
Wowza streaming Engine
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-16T14:30:30.462Z

Reserved: 2026-03-15T18:21:47.205Z

Link: CVE-2016-20033

cve-icon Vulnrichment

Updated: 2026-03-16T14:21:05.914Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-16T14:17:50.297

Modified: 2026-03-16T14:53:46.157

Link: CVE-2016-20033

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-16T09:21:10Z

Weaknesses