CVEs / CVE-2023-21839
CVE-2023-21839: Oracle WebLogic Server Unspecified Vulnerability
- Known exploited in the CISA KEV catalog since 1 May 2023
- high 7.5 CVSS 3.1 (from the CNA)
- EPSS 99.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Oracle WebLogic Server contains an unspecified vulnerability that allows an unauthenticated attacker with network access via T3, IIOP, to compromise Oracle WebLogic Server.
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Oracle Corporation WebLogic Server | 12.2.1.3.0 | — |
| Oracle Corporation WebLogic Server | 12.2.1.4.0 | — |
| Oracle Corporation WebLogic Server | 14.1.1.0.0 | — |
Exploitation
| In CISA KEV since | 1 May 2023 |
|---|---|
| Due date for US federal agencies | 22 May 2023 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-502, CWE-306 |
References
- CVE-2023-21839 on NVD
- CVE-2023-21839 in the CISA KEV catalog
- https://www.oracle.com/security-alerts/cpujan2023.html (cited by CISA)
- http://packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-Remote-Command-Execution.html Exploit, Third Party Advisory, VDB Entry
- https://www.oracle.com/security-alerts/cpujan2023.html Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21839 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.