What is CVE-2023-21841?

CVE-2023-21841 is a high-severity vulnerability in Oracle Weblogic Server, classified under Improper Authentication. CVSS score: 7.5/10. Published 2023-01-18.

How severe is CVE-2023-21841?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-21841 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Oracle Weblogic Server

CVE-2023-21841

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).

Vulnerability class: Broken Authentication

EPSS: 0.007 (50.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Oracle Weblogic_server — versions 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0
Oracle Corporation Weblogic Server — versions 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

Public proof-of-concept exploits

References

secalert_us@oracle.com (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21841?: CVE-2023-21841 is a high-severity vulnerability in Oracle Weblogic Server, classified under Improper Authentication. CVSS score: 7.5/10. Published 2023-01-18.
How severe is CVE-2023-21841?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-21841 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.