Oracle Critical Patch Update for October 2025

October 21, 2025
Oracle Critical Patch Update for October 2025

Dear Oracle Customer,

Critical Patch Update for October 2025 was released on October 21, 2025.

Oracle strongly recommends applying the patches as soon as possible.

If you are new to this process, please review Oracle's Security Fixing Policies and the Critical Patch Update Advisory. After reviewing these resources, if you are unable to determine if you require a software update, or how to apply it, please contact Oracle Support.

The Critical Patch Update Advisory is the starting point for relevant information. It includes the list of products affected, pointers to obtain the patches, a summary of the security vulnerabilities for each product suite, and links to other important documents. Supported products that are not listed in the "Affected Products and Components" section of the advisory do not require new patches to be applied.

Also, it is essential to review the Critical Patch Update supporting documentation referenced in the Advisory before applying patches, as this is where you can find important pertinent information.

Critical Patch Update Advisories are available at the following location:

Oracle Technical Resources:
https://www.oracle.com/security-alerts/

Oracle Cloud Customers should review:
https://www.oracle.com/security-alerts/#cloud

The Critical Patch Update Advisory for October 2025 is available at the following location:

Oracle Technical Resources:
https://www.oracle.com/security-alerts/cpuoct2025.html

Important information can also be found at:
https://blogs.oracle.com/security/

Oracle's Security Fixing Policies are available at the following location:

https://www.oracle.com/corporate/security-practices/assurance/vulnerability/security-fixing.html

The next four dates for Critical Patch Updates are:

January 20, 2026
April 21, 2026
July 21, 2026
October 20, 2026

Thank you,
Mallikarjun 

Customer Support of Oracle Corporation
https://www.oracle.com/support/contact/index.html