Overview
Oracle WebLogic Server contains an unspecified vulnerability that allows an unauthenticated attacker with network access via T3, IIOP, to compromise Oracle WebLogic Server.
https://www.oracle.com/security-alerts/cpujan2023.html; https://nvd.nist.gov/vuln/detail/CVE-2023-21839
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2023-21839 |
| Vendor / Product | Oracle — WebLogic Server |
| NVD Published | 2023-01-18 |
| NVD Last Modified | 2025-10-27 |
| CVSS 3.1 Score | 7.5 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Severity | HIGH |
| CWE | CWE-502 |
| CISA KEV Added | 2023-05-01 |
| CISA KEV Deadline | 2023-05-22 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Required Action
CISA BOD 22-01 Deadline: 2023-05-22.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2023-05-01 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2023-05-22 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2023-21839 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |