Oracle September 2026 Critical Security Patch Update addresses 672 CVEs

Oracle addresses 672 CVEs in its September 2026 Critical Security Patch Update with 673 patches, including 104 critical updates.

Key Takeaways

1. The September 2026 Critical Security Patch Update (CSPU) contains fixes for 672 unique CVEs in 673 security updates
2. 104 issues (15.5% of all patches) were assigned a critical severity rating
3. Oracle E-Business Suite received the highest number of patches at 159, accounting for 23.6% of all patches

Background

On September 15, Oracle released its Critical Security Patch Update (CSPU) for September 2026. Beginning in May 2026, Oracle introduced CSPUs as a monthly release cycle that sits between the larger quarterly Critical Patch Updates (CPUs), addressing a focused set of high-severity issues on a faster cadence. This CSPU contains fixes for 672 unique CVEs in 673 security updates across 17 Oracle product families. Out of the 673 security updates published, 15.5% of patches were assigned a critical severity. High severity patches accounted for the bulk of security patches at 74.7%, followed by critical severity patches at 15.5%.

This month's update includes 104 critical patches across 104 CVEs.

Analysis

This month's update saw the Oracle E-Business Suite product family contain the highest number of patches at 159, accounting for 23.6% of the total patches, followed by Oracle Fusion Middleware at 153 patches, which accounted for 22.7% of the total patches.

A full breakdown of the patches for this CSPU can be seen in the following table, which also includes a count of vulnerabilities that can be exploited over a network without authentication.

Solution

Patches are available in the September 2026 advisory for full details.

Identifying affected systems

A list of Tenable plugins to identify these vulnerabilities will appear here as they're released. This link uses a search filter to ensure that all matching plugin coverage will appear as it is released.

Get more information

• Oracle Critical Security Patch Update Advisory - September 2026
• Oracle September 2026 Critical Security Patch Update Risk Matrices
• Oracle Advisory to CVE Map

Join Tenable's Research Special Operations (RSO) Team on Tenable Connect for further discussions on the latest cyber threats.

Learn more about Tenable One, the Exposure Management Platform for the modern attack surface.