CVE WatchOct 21, 2026

CVE-2026-91323

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are

CVSS

9.8

Critical

EPSS

0.5%

p42

KEV

—

Exploit Today

0-100

Published: Oct 20, 2026 · Last modified: Oct 21, 2026 · CWE-287 · CWE-306

EPSS · 30d

0.5%EPSS · 30 days0.5%

2026-10-212026-10-25

Technical description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. 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).

Official references

www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2026.html

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