Oracle WebLogic Server Core RCE - 12.2.1.4.0 to 15.1.1.0.0
CVE-2026-35300 Published on June 16, 2026
Vulnerability in the 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 TCP to compromise WebLogic Server. Successful attacks of this vulnerability can result in takeover of 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).
Vulnerability Analysis
CVE-2026-35300 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2026-35300 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2026-35300
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Affected Versions
Oracle Corporation WebLogic Server:- Version 12.2.1.4.0 is affected.
- Version 14.1.1.0.0 is affected.
- Version 14.1.2.0.0 is affected.
- Version 15.1.1.0.0 is affected.