Is CVE-2016-20034 actively exploited?

No active exploitation of CVE-2016-20034 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2016-20034 be exploited remotely?

Yes. CVE-2016-20034 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2016-20034?

CVE-2016-20034 has a CVSS score of 8.0 (HIGH).

HOME VULNERABILITIESCVE-2016-20034

HIGH

CVE-2016-20034

CWE-352Published: March 16, 2026· Updated: Mar 19, 2026

8.0

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.3th

Official Description

Wowza Streaming Engine 4.5.0 contains a privilege escalation vulnerability that allows authenticated read-only users to elevate privileges to administrator by manipulating POST parameters. Attackers can send POST requests to the user edit endpoint with accessLevel set to 'admin' and advUser parameters set to 'true' and 'on' to gain administrative access.

NVD Source

Technical Analysis

CVE-2016-20034 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.0.