Cyber Resilience

CVE-2020-2551

Oracle Weblogic Server 10.3.6.0.0 … 12.2.1.4.0

CISA KEVActive ExploitationEUVD Exploited
Published
15 January 2020
Modified
27 October 2025
KEV Added
16 November 2023
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.93 99.8th percentile
Risk Priority 97 floored blend · peak EPSS

Summary

CVE-2020-2551 is a critical-severity an unspecified weakness vulnerability in Oracle Weblogic Server. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 0.2% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2020-2551 is a vulnerability in the WLS Core Components of Oracle WebLogic Server within Oracle Fusion Middleware. It affects supported versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, and 12.2.1.4.0. The flaw is rated with a CVSS 3.0 base score of 9.8 and carries impacts to confidentiality, integrity, and availability.

An unauthenticated attacker with network access via IIOP can easily exploit the issue to compromise the server, resulting in full takeover of the Oracle WebLogic Server instance. No user interaction or authentication is required for successful exploitation.

The vulnerability is addressed in the Oracle Critical Patch Update for January 2020, available at the referenced Oracle security advisory. It is also listed in the CISA Known Exploited Vulnerabilities catalog, confirming observed real-world exploitation activity.

EU & UK References

Vulnerability Data

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…

more

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).

CWE(s)
NVD-CWE-noinfo
KEV Date Added
16 November 2023

Related Threats

CVEs Like This One

CVE-2023-21839Same product: Oracle Weblogic Serverboth on KEV
CVE-2024-21182Same product: Oracle Weblogic Serverboth on KEV
CVE-2020-14882Same product: Oracle Weblogic Serverboth on KEV
CVE-2020-14750Same product: Oracle Weblogic Serverboth on KEV
CVE-2018-2628Same product: Oracle Weblogic Serverboth on KEV
CVE-2020-2883Same product: Oracle Weblogic Serverboth on KEV
CVE-2020-14644Same product: Oracle Weblogic Serverboth on KEV
CVE-2020-14883Same product: Oracle Weblogic Serverboth on KEV
CVE-2017-3506Same product: Oracle Weblogic Serverboth on KEV
CVE-2017-10271Same product: Oracle Weblogic Serverboth on KEV

Affected Assets

oracle
weblogic server
10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References