CVSS v3
8.8
HIGH
EPSS Score
3.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A remote authenticated authorization-bypass vulnerability in Wowza Streaming Engine 4.8.0 and earlier allows any read-only user to issue requests to the administration panel in order to change functionality. For example, a read-only user may activate the Java JMX port in unauthenticated mode and execute OS commands under root privileges. This issue was resolved in Wowza Streaming Engine 4.8.5.
Technical details
- Published
- 2020-04-14
Frequently asked questions
What is CVE-2020-9004?
A remote authenticated authorization-bypass vulnerability in Wowza Streaming Engine 4.8.0 and earlier allows any read-only user to issue requests to the administration panel in order to change functionality. For example, a read-only user may activate the Java JMX port in unauthenticated mode and execute OS commands under root privileges. This issue was resolved in Wowza Streaming Engine 4.8.5.
Is CVE-2020-9004 actively exploited?
Active exploitation of CVE-2020-9004 has not been confirmed. Its EPSS score was 3.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-9004?
CVE-2020-9004 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2020-9004 affecting your environment?
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