CVEs / CVE-2020-2883
CVE-2020-2883: Oracle WebLogic Server Unspecified Vulnerability
- Known exploited in the CISA KEV catalog since 7 Jan 2025
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 94.5% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Oracle WebLogic Server, a product within the Fusion Middleware suite, contains an unspecified vulnerability exploitable by an unauthenticated attacker with network access via IIOP or T3.
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Oracle Corporation WebLogic Server | 10.3.6.0.0 | — |
| Oracle Corporation WebLogic Server | 12.1.3.0.0 | — |
| Oracle Corporation WebLogic Server | 12.2.1.3.0 | — |
| Oracle Corporation WebLogic Server | 12.2.1.4.0 | — |
Exploitation
| In CISA KEV since | 7 Jan 2025 |
|---|---|
| Due date for US federal agencies | 28 Jan 2025 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|
References
- CVE-2020-2883 on NVD
- CVE-2020-2883 in the CISA KEV catalog
- https://www.oracle.com/security-alerts/cpuapr2020.html (cited by CISA)
- http://packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.html Third Party Advisory, VDB Entry
- https://www.oracle.com/security-alerts/cpuapr2020.html Vendor 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-2020-2883 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.