Auth bypass in Eibiz I-Media Server Digital Signage
CVE-2020-36894
Eibiz i-Media Server Digital Signage 3.8.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to create admin users through AMF-encoded object manipulation. Attackers can send crafted serialized objects to the /messagebroker/amf endpoint to create administrative users without authentication, bypassing security controls.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (54.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: -0.000
Affected products
- Eibiz I-Media Server Digital Signage — versions 3.8.0
- Eibiz Co.,ltd. I-Media Server Digital Signage — versions 0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/48763 (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5586.php (Exploit, vendor-advisory, Third Party Advisory)
- www.eibiz.co.th (technical-description, Broken Link)
- www.vulncheck.com/advisories/eibiz-i-media-server-digital-signage-unauthenticat… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2020-36894?
- CVE-2020-36894 is a high-severity vulnerability in Eibiz I-Media Server Digital Signage, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2025-12-10.
- How severe is CVE-2020-36894?
- High severity. CVSS v3 base score is 7.5 out of 10.