CVE-2023-21839

7.5 HIGH CISA KEV - Actively Exploited
Published: January 18, 2023 Modified: October 27, 2025

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).

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-Remote-Command-Execution.html
Source: secalert_us@oracle.com
Exploit Third Party Advisory VDB Entry
https://www.oracle.com/security-alerts/cpujan2023.html
Source: secalert_us@oracle.com
Patch Vendor Advisory
http://packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-Remote-Command-Execution.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://www.oracle.com/security-alerts/cpujan2023.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21839
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
94.2%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2023-05-22

Weaknesses (CWE)

Affected Vendors

oracle