CVE-2020-2883
Oracle WebLogic Server Unspecified Vulnerability
- Published
- Apr 15, 2020
- Updated
- Jan 12, 2026
- Assigning CNA
- oracle
- Evidence observed
- Jan 7, 2025
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.9%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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).
Sources
modules/exploits/multi/misc/weblogic_deserialize_badattr_extcomp.rb
Metasploit Framework modulesDeclared conditions
- platform: Linux,Unix,Windows($.exploit_multi/misc/weblogic_deserialize_badattr_extcomp.platform)
- verification: check_declared($.exploit_multi/misc/weblogic_deserialize_badattr_extcomp.check)
javascript/cves/2020/CVE-2020-2883.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl($.matchers[*].type)
- oob: interactsh_reference($.template_text)
Responsible use
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