CVE-2020-2883
Oracle Corporation WebLogic Server
Published 15 Apr 2020 · updated 17 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 7 Jan 2025, with a remediation deadline of 28 Jan 2025 for US federal agencies.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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).
References
- packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.html · Third Party Advisory, VDB Entry
- www.oracle.com/security-alerts/cpuapr2020.html · Vendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-20-504/ · Third Party Advisory, VDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-570/ · Third Party Advisory, VDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2883 · US Government Resource