Oracle · WebLogic Server
CVE-2023-21839
Oracle WebLogic Server Unspecified Vulnerability
What it is
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).
CISA: Oracle WebLogic Server contains an unspecified vulnerability that allows an unauthenticated attacker with network access via T3, IIOP, to compromise Oracle WebLogic Server.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: May 22, 2023
More exploited flaws from Oracle
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Jun 1, 2026 | Unspecified | WebLogic Server | High 7.5 | 74% |
| Jan 7, 2025 | Unspecified | WebLogic Server | Critical 9.8 | 95% |
| Sep 18, 2024 | Remote Code Execution | WebLogic Server | Critical 9.8 | 95% |
| Jun 3, 2024 | OS Command Injection | WebLogic Server | High 7.4 | 96% |
| Sep 8, 2022 | Unspecified | WebLogic Server | Critical 9.8 | >99.9% |
| Feb 10, 2022 | Corporation WebLogic Server Remote Code Execution | WebLogic Server | High 7.5 | >99.9% |
| Jan 10, 2022 | WebLogic Server, Injection | WebLogic Server | High 7.5 | >99.9% |
| Nov 3, 2021 | Deserialization of Untrusted Data | WebLogic Server | Critical 9.8 | 95% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.