# CVE-2020-2551: Oracle Fusion Middleware Unspecified Vulnerability

> CVE-2020-2551: Oracle Fusion Middleware Unspecified Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2020-2551
Last updated: 2026-01-12T21:12:03Z

- Published: 2020-01-15 16:34 UTC · Updated: 2026-01-12 21:12 UTC · Assigner: oracle
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 92.8%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-11-16, federal due date 2023-12-07, ransomware use: Unknown

## Description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: WLS Core Components). 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 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).

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Oracle Corporation: WebLogic Server

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2020-2551)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2020-2551)
- [https://www.oracle.com/security-alerts/cpujan2020.html](https://www.oracle.com/security-alerts/cpujan2020.html)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2020-2551 · Markdown: https://rewindex.com/cve/CVE-2020-2551.md · JSON: https://rewindex.com/api/v1/cves/CVE-2020-2551 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:30.653Z