Oracle WebLogic Server Unspecified Vulnerability
Oracle Corporation — WebLogic Server
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
9.8
94.9%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- Apr 15, 2020
- Modified
- Jan 12, 2026
- Added to KEV
- Jan 7, 2025
- Federal patch due
- Jan 28, 2025
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2020-2883, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2020-2883 were found at last check. Absence here is not proof no exploit exists - see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2020-2883?
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
How severe is CVE-2020-2883?
CVE-2020-2883 has a CVSS base score of 9.8 out of 10 (CVSS 3.0).
Is CVE-2020-2883 actively exploited in the wild?
Yes. CVE-2020-2883 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Jan 7, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2020-2883?
94.9% - meaning FIRST.org's EPSS model estimates a 94.9% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Cross-checked against
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