What’s Vulnerable › Vulnerabilities

CVE-2020-2883: Oracle WebLogic Server Unspecified Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-01-07
• EPSS: 94.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-15 · updated 2026-06-17

Description

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).

Affected products

• Oracle WebLogic Server: 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0

References

• http://packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.html
• https://www.oracle.com/security-alerts/cpuapr2020.html
• https://www.zerodayinitiative.com/advisories/ZDI-20-504/
• https://www.zerodayinitiative.com/advisories/ZDI-20-570/
• http://packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.html
• https://www.oracle.com/security-alerts/cpuapr2020.html
• https://www.zerodayinitiative.com/advisories/ZDI-20-504/
• https://www.zerodayinitiative.com/advisories/ZDI-20-570/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2883

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