CVE-2026-60202 in WebLogic Server
Summary
by MITRE • 07/22/2026
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 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).
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Analysis
by VulDB Data Team • 07/22/2026
This vulnerability resides within Oracle WebLogic Server's Core component of Oracle Fusion Middleware, representing a critical security flaw that affects multiple version lines including 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. The vulnerability stems from insufficient authentication mechanisms within the server's T3 and IIOP protocol handlers, which are legacy communication protocols designed for internal enterprise communication but remain exposed in many production environments. The flaw enables unauthenticated attackers to establish connections directly through these protocols without requiring valid credentials or prior authorization.
The technical exploitation of this vulnerability occurs through network-based attacks targeting the T3 and IIOP endpoints that remain accessible to external networks. Attackers can leverage these protocols to execute arbitrary code on the target WebLogic server, effectively gaining full control over the system. The CVSS 3.1 score of 9.8 reflects the severity with impacts across confidentiality, integrity, and availability dimensions, indicating that successful exploitation can result in complete system compromise. This vulnerability falls under CWE-284 which addresses inadequate access control mechanisms, specifically focusing on insufficient authentication in network services.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass full system takeover capabilities that can result in data breaches, service disruption, and complete loss of enterprise control over critical infrastructure. Organizations running affected WebLogic Server versions face immediate risk as the attack vector requires no prior authentication credentials and can be executed from external networks. The implications include potential exposure of sensitive enterprise data, disruption of business-critical applications, and compromise of downstream systems that depend on WebLogic Server functionality.
Mitigation strategies should prioritize immediate patching of affected versions to address the core authentication bypass issue within T3 and IIOP protocol handlers. Organizations must also implement network segmentation to restrict access to WebLogic server endpoints, particularly disabling external exposure of T3 and IIOP protocols where possible. The ATT&CK framework categorizes this vulnerability under privilege escalation and remote code execution tactics, emphasizing that defenders should monitor for unusual network connections to these legacy protocols and implement network-based intrusion detection systems. Additional security controls include enforcing strong network access controls, implementing zero-trust principles for server communications, and conducting comprehensive vulnerability assessments to identify any remaining exposed endpoints that may provide similar attack vectors for exploitation.