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Log4J Security Alert CVE-2021-44228 / CVE-2021-45046 Patch Availability Document for Oracle WebLogic Server and Fusion Middleware (Doc ID 2827793.1)

Last updated on APRIL 11, 2024

Applies to:

Oracle WebLogic Server - Version to [Release 12c to 14c]
Oracle Fusion Middleware - Version to [Release 12c]
Information in this document applies to any platform.
- Applies to any product installed with the FMW Infrastructure
- Applies to OHS, OID, and OUD standalone homes


In response to Security Alert CVE-2021-44228, Oracle has released patches for Oracle Middleware products This document provides information on how to obtain and apply these security updates. Please note that these patches address vulnerabilities CVE-2021-44228 and CVE-2021-45046. A separate vulnerability, CVE-2021-45105, was also fixed with the patch listed below.

Please note that the Apache Software Foundation has published a number of mitigation steps in response to the Log4j vulnerabilities CVE-2021-44228 and CVE-2021-45046. These temporary mitigation steps for CVE-2021-44228 and CVE-2021-45046 are provided below for situations where the patch cannot be immediately applied. However, these mitigation steps do not address vulnerability CVE-2021-45105.

Oracle recommends that you apply the necessary patches as soon as possible to permanently address these vulnerabilities.

Last Update Date: 07/19/2022 06:30 pm ET (minor clarifications)
- To be notified when this document changes: Mark this article as a Favorite, and follow the instructions for Email Notification in Doc ID 793436.2.

Update for 04/19/2022 and later:
For the latest CUMULATIVE Critical Patch Update, see the following:


This document applies to:

In earlier versions, (12.1.x, 11.1.x, 10.3.x) the Apache Log4j library included was version 1, which is not reported as having these vulnerabilities.


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In this Document
 WebLogic Server Installed Log4j Files
 Patch Availability for Oracle WebLogic Server and Oracle Fusion Middleware 
 Mitigation Plan
 FAQ / Known Issues


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