CVE-2020-36894
CVE-2020-36894 is a high-severity vulnerability in Eibiz I-media Server Digital Signage with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v4: 9.3
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2020-30838
- Weakness: CWE-306
- Affected product: Eibiz I-media Server Digital Signage
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-36894?
- CVE-2020-36894 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2020-36894 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-36894?
- CVE-2020-36894 affects Eibiz I-media Server Digital Signage. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-36894?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2020-36894 have an EU (EUVD) identifier?
- Yes. CVE-2020-36894 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30838.
- When was CVE-2020-36894 published?
- CVE-2020-36894 was published on 2025-12-10 and last updated on 2026-06-17.
References
- http://www.eibiz.co.th
- https://www.exploit-db.com/exploits/48763
- https://www.vulncheck.com/advisories/eibiz-i-media-server-digital-signage-unauthenticated-user-creation-vulnerability
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5586.php
Affected products (1)
- cpe:2.3:a:eibiz:i-media_server_digital_signage:3.8.0:*:*:*:*:*:*:*
More vulnerabilities in Eibiz I-media Server Digital Signage
- CVE-2020-36892 — Critical (CVSS 9.8): Eibiz i-Media Server Digital Signage 3.8.0 contains an unauthenticated privilege escalation vulnerability in the…
- CVE-2020-36895 — High (CVSS 7.5): EIBIZ i-Media Server Digital Signage 3.8.0 contains an unauthenticated configuration disclosure vulnerability that…
- CVE-2020-36893 — High (CVSS 7.5): Eibiz i-Media Server Digital Signage 3.8.0 contains a directory traversal vulnerability that allows unauthenticated…
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