CVE-2023-21839
Oracle WebLogic Server Unspecified Vulnerability
- Published
- Jan 17, 2023
- Updated
- Oct 21, 2025
- Assigning CNA
- oracle
- Evidence observed
- May 1, 2023
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NHigh · next 30 days
- Percentile
- 100.0%
- Model date
- Oct 17, 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 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Sources
weblogic/CVE-2023-21839
WebLogic Pre-Auth Remote Command Execution (CVE-2023-21839)
Vulhub vulnerability labsDeclared conditions
- lab image version: vulhub/weblogic:12.2.1.3-2018(weblogic/CVE-2023-21839/docker-compose.yml:services.weblogic.image)
- Oracle Weblogic PreAuth Remote Command Execution via ForeignOpaqueReference IIOP DeserializationModule
modules/exploits/multi/iiop/cve_2023_21839_weblogic_rce.rb
Metasploit Framework modulesDeclared conditions
- platform: Linux,Unix($.exploit_multi/iiop/cve_2023_21839_weblogic_rce.platform)
- verification: check_declared($.exploit_multi/iiop/cve_2023_21839_weblogic_rce.check)
javascript/cves/2023/CVE-2023-21839.yaml
Nuclei TemplatesDeclared conditions
- verification: dsl($.matchers[*].type)
- oob: interactsh_reference($.template_text)
Responsible use
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