What is CVE-2026-73963?

CVE-2026-73963 is a critical-severity vulnerability in Oracle Corporation Webcenter Portal, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-09-15.

How severe is CVE-2026-73963?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Oracle Corporation Webcenter Portal

CVE-2026-73963

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Portlet Services). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Oracle Corporation Webcenter Portal — versions 12.2.1.4.0, 14.1.2.0.0

Weakness classification (CWE)

References

secalert_us@oracle.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-73963?: CVE-2026-73963 is a critical-severity vulnerability in Oracle Corporation Webcenter Portal, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-09-15.
How severe is CVE-2026-73963?: Critical severity. CVSS v3 base score is 9.8 out of 10.