Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP 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).
Use CWE-306, Oracle vendor hub and Weblogic Server product page to widen CVE-2025-21535 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-34305, CVE-2025-61752 and CVE-2025-30762 for nearby disclosures in the same product family.