CVE-2020-2883
Oracle WebLogic Server Unspecified Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 28 January 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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).
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 94.58% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 7 January 2025 · due 28 January 2025
- Affected
- oracle/weblogic server
- Source
- secalert_us@oracle.com
EPSS 94.6% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://www.oracle.com/security-alerts/cpuapr2020.html ; https://nvd.nist.gov/vuln/detail/CVE-2020-2883
References
- http://packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
- https://www.oracle.com/security-alerts/cpuapr2020.htmlVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-504/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-570/Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
- https://www.oracle.com/security-alerts/cpuapr2020.htmlVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-504/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-570/Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2883US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.