← back
CVE-2016-20033

Wowza Streaming Engine 4.5.0 Local Privilege Escalation via nssm_x64.exe

CVSS 8.5 HIGHEPSS 0.2%CWE-639
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.5EPSS 0.2%KEV nãoPoC Nuclei Metasploit Patch referenciado
Lifecycle
15 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →