CVE-2016-20033

HIGH

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/16/2026

Last Modified3/19/2026

Sourcenvd

Honeypot Sightings0

Affected Products

wowza:streaming_engine

Weaknesses (CWE)

CWE-639

References

http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5339.php(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/40132(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/wowza-streaming-engine-local-privilege-escalation-via-nssm-x64-exe(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.