Description
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).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Oracle | WebLogic Server | 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
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Oracle Weblogic PreAuth Remote Command Execution via ForeignOpaqueReference IIOP Deserialization
exploit/multi/iiop/cve_2023_21839_weblogic_rce
GitHub 8 repositories
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DXask88MA/Weblogic-CVE-2023-21839 ★ 242 · Feb 21, 2023
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ASkyeye/CVE-2023-21839 ★ 118 · Feb 24, 2023
Weblogic CVE-2023-21839 RCE (无需Java依赖一键RCE)
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dinosn/CVE-2024-20931 ★ 61 · Feb 6, 2024
CVE-2024-20931, this is the bypass of the patch of CVE-2023-21839
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Firebasky/CVE-2023-21839 ★ 26 · Mar 11, 2023
CVE-2023-21839工具
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houqe/POC_CVE-2023-21839 ★ 19 · Apr 15, 2023
CVE-2023-21839 Python版本
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dinosn/CVE-2024-21182 ★ 3 · Jun 2, 2026
Reproducible Docker lab for CVE-2024-21182 — Oracle WebLogic T3/IIOP OpaqueReference JNDI injection → unauthenticated RCE (CVE-2023-21839 patch-bypass family). One-command validate.sh.
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Romanc9/Gui-poc-test ★ 2 · Dec 3, 2023
A testing tool for CobaltStrike-RCE:CVE-2022-39197; Weblogic-RCE:CVE-2023-21839; MinIO:CVE-2023-28432
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kw3h4/CVE-2023-21839-metasploit-scanner ★ 0 · May 29, 2023
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Oracle WebLogic Server - Unauthorized Access javascript/cves/2023/CVE-2023-21839.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
Advisories 1
- WID-SEC-2023-0132 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 1, 2023