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    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.

    Published:Mar 15, 2026
    Last Modified:Mar 23, 2026
    EPS:Mar 15, 2026
    EPSS Score:0.00017
    CVSS Score:7.8

    Affected Products

    Vendor
    Wowza
    Product
    Streaming Engine

    Exploits

    http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5339.phphttps://www.exploit-db.com/exploits/40132

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2016-20036 (CVSS 5.1) — Wowza Streaming Engine 4.5.0 contains multiple reflected cross-site scripting vulnerabilities in the engineman…
    CVE-2016-20035 (CVSS 6.9) — Wowza Streaming Engine 4.5.0 contains a cross-site request forgery vulnerability that allows attackers to perf…
    CVE-2016-20034 (CVSS 8.7) — Wowza Streaming Engine 4.5.0 contains a privilege escalation vulnerability that allows authenticated read-only…
    CVE-2024-52056 (CVSS 6.9) — Path Traversal in the Manager component of Wowza Streaming Engine below 4.9.1 allows an administrator user to …
    CVE-2024-52055 (CVSS 8.2) — Path Traversal in the Manager component of Wowza Streaming Engine below 4.9.1 allows an administrator user to …
    CVE-2024-52054 (CVSS 5.1) — Path Traversal in the Manager component of Wowza Streaming Engine below 4.9.1 allows an administrator user to …
    CVE-2024-52053 (CVSS 8.7) — Stored Cross-Site Scripting in the Manager component of Wowza Streaming Engine below 4.9.1 allows an unauthent…
    CVE-2024-52052 (CVSS 9.4) — Wowza Streaming Engine below 4.9.1 permits an authenticated Streaming Engine Manager administrator to define a…
    CVE-2021-35492 (CVSS 6.5) — Wowza Streaming Engine through 4.8.11+5 could allow an authenticated, remote attacker to exhaust filesystem re…
    CVE-2021-35491 (CVSS 8.1) — A Cross-Site Request Forgery (CSRF) vulnerability in Wowza Streaming Engine through 4.8.11+5 allows a remote a…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High