CVE-2026-60313
Summary
by MITRE • 07/21/2026
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 low privileged attacker with network access via RMI to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 07/21/2026
This vulnerability exists within Oracle WebLogic Server Fusion Middleware component known as Core and represents a critical security flaw affecting 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 resides in the Remote Method Invocation (RMI) subsystem which serves as a fundamental communication mechanism within the WebLogic Server architecture. The flaw allows an attacker with minimal privileges and network access to execute arbitrary code on the target server, potentially leading to complete system compromise. This represents a significant escalation risk given that RMI interfaces are commonly exposed in enterprise environments and typically require authentication but may have weak access controls.
The technical nature of this vulnerability stems from inadequate input validation and authentication mechanisms within the RMI processing layer of WebLogic Server. Attackers can exploit this weakness by sending specially crafted RMI requests that bypass normal security checks, allowing them to execute malicious payloads on the target system. The CVSS 3.1 score of 8.8 indicates high severity across all impact vectors with confidentiality, integrity, and availability completely compromised. This vulnerability operates under the Common Weakness Enumeration framework as CWE-20, representing weakness in input validation that leads to remote code execution through insecure deserialization patterns common in RMI implementations.
The operational impact of this vulnerability extends far beyond simple system compromise as it enables attackers to gain full administrative control over affected WebLogic servers. Once compromised, attackers can access sensitive data stored within the application server, modify or delete critical information, and potentially use the compromised server as a pivot point for further attacks within the enterprise network. The low privilege requirement and network accessibility make this vulnerability particularly dangerous in environments where WebLogic servers are exposed to untrusted networks or where weak authentication mechanisms exist. This aligns with ATT&CK techniques emphasizing remote service exploitation and privilege escalation through application-level vulnerabilities.
Organizations should prioritize immediate patching of affected systems using Oracle's security updates, as the vulnerability is considered easily exploitable with readily available attack tools in public exploit repositories. Network segmentation and firewall rules should be implemented to restrict RMI access to trusted networks only, while disabling unnecessary RMI services where possible. Additional mitigations include implementing strict authentication controls, monitoring for suspicious RMI traffic patterns, and conducting comprehensive security assessments of all WebLogic Server installations. Regular vulnerability scanning and penetration testing should be performed to identify other potential attack vectors within the application server environment, as this vulnerability may indicate broader security weaknesses in the overall system architecture that require remediation.