CVE-2020-2551

critical

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).

References

https://thehackernews.com/2026/08/actively-exploited-oracle-weblogic-flaw.html

https://securityaffairs.com/197801/security/u-s-cisa-adds-maximum-severity-oracle-flaw-to-its-known-exploited-vulnerabilities-catalog.html

https://www.infosecurity-magazine.com/news/critical-oracle-weblogic-rce/

https://www.tenable.com/blog/cve-2026-21992-critical-out-of-band-oracle-identity-manager-and-oracle-web-services-manager

https://www.tenable.com/blog/oracle-january-2020-critical-patch-update-contains-255-cves

https://github.com/chengbochuan3/CVE-Web-Framework

https://github.com/B1ack4sh/Blackash-CVE-2020-2551

https://github.com/kuckibf/Popular-CVEs

https://github.com/zzwlpx/weblogicPoc

https://github.com/0xlane/CVE-2020-2551

https://github.com/zhzyker/exphub

https://github.com/5l1v3r1/CVE-2020-2553

https://github.com/hktalent/CVE_2020_2546

https://github.com/Y4er/CVE-2020-2551

https://github.com/0xn0ne/weblogicScanner

https://www.oracle.com/security-alerts/cpujan2020.html

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2551

Details

Source: Mitre, NVD

Published: 2020-01-15

Updated: 2026-06-17

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.93168