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
- Sep 21, 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
8- CVE-2024-20931Exploit
Java-based exploit for CVE-2024-20931 bypassing CVE-2023-21839 patch in Oracle WebLogic. Uses JNDI injection via ForeignOpaqueReference to achieve remote code execution.
- Weblogic-CVE-2023-21839Exploit
Java-based exploit for CVE-2023-21839 targeting Oracle WebLogic Server versions 12.2.1.3.0 and 12.2.1.4.0 via LDAP injection for remote code execution.
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