CVE-2025-30762 in WebLogic Server
Summary
by MITRE • 07/15/2025
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 and 14.1.2.0.0. 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 unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 07/25/2025
The vulnerability identified as CVE-2025-30762 represents a critical security flaw within Oracle WebLogic Server's Core component, affecting multiple version lines including 12.2.1.4.0, 14.1.1.0.0, and 14.1.2.0.0. This vulnerability resides within Oracle Fusion Middleware and demonstrates the inherent risks associated with enterprise application servers that serve as central points of access for organizational data and services. The affected WebLogic Server instances operate as foundational infrastructure components for many enterprises, making this vulnerability particularly concerning from a cybersecurity perspective. The vulnerability's classification as easily exploitable indicates that attackers can leverage it without requiring specialized skills or privileged access, significantly amplifying its potential impact across enterprise environments.
The technical implementation of this vulnerability stems from insufficient authentication mechanisms within the T3 and IIOP protocol handlers used by WebLogic Server. These protocols are commonly used for remote administration and inter-process communication within the Oracle ecosystem, but they have historically been prone to security weaknesses. The flaw allows attackers to bypass authentication requirements entirely, meaning that any individual with network access to the affected server can exploit this vulnerability without presenting valid credentials. This represents a fundamental breakdown in the server's access control mechanisms, where the security model fails to properly validate incoming requests through these communication channels. The vulnerability's CVSS score of 7.5 reflects the high severity of confidentiality impacts, indicating that successful exploitation can lead to unauthorized access to critical data or complete data compromise within the affected systems.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with complete access to all data accessible through the compromised WebLogic Server instance. This includes sensitive enterprise information, user credentials, application data, and potentially access to underlying database systems that the WebLogic Server may interface with. The vulnerability's network-based attack vector means that attackers can exploit it remotely without requiring physical access to the server infrastructure, making it particularly dangerous in cloud environments or when servers are exposed to the internet. Organizations with multiple WebLogic Server instances may face cascading effects if one server is compromised, potentially allowing attackers to move laterally through the network infrastructure. The lack of requirement for user interaction or privilege escalation means that this vulnerability can be exploited automatically by automated attack tools, increasing the speed and scope of potential breaches.
Mitigation strategies for CVE-2025-30762 should prioritize immediate patch deployment from Oracle, as this represents the most effective solution to address the underlying authentication flaw. Organizations should also implement network segmentation to limit access to WebLogic Server instances, particularly disabling T3 and IIOP protocols where they are not strictly required for business operations. Network monitoring and intrusion detection systems should be configured to detect unusual traffic patterns associated with T3 and IIOP protocol usage, as these may indicate exploitation attempts. The vulnerability's characteristics align with ATT&CK technique T1190 (Exploit Public-Facing Application) and CWE-287 (Improper Authentication), highlighting the need for comprehensive application security measures. Organizations should conduct thorough vulnerability assessments to identify all instances of affected WebLogic Server versions and implement network-level controls to restrict access to these critical systems. Additionally, implementing principle of least privilege access controls and regular security audits can help minimize the potential impact should exploitation occur despite preventive measures.