CVE-2026-62634 in Reports Developer
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Reports Developer product of Oracle Fusion Middleware (component: Security and Authentication). The supported version that is affected is 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via CORBA to compromise Oracle Reports Developer. Successful attacks of this vulnerability can result in takeover of Oracle Reports Developer. 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 • 08/19/2026
The vulnerability identified in Oracle Reports Developer version 14.1.2.0.0, a component of the Oracle Fusion Middleware suite, represents a critical security flaw within its Security and Authentication subsystem. This specific defect allows for remote code execution or complete system compromise without requiring any form of user interaction or prior authentication credentials. The affected software relies on Common Object Request Broker Architecture (CORBA) for inter-process communication and distributed object connectivity. In this instance, the implementation fails to adequately validate inputs or enforce access controls within the CORBA interface, creating a direct pathway for malicious actors to exploit the system from a networked position.
From a technical perspective, the core issue lies in the handling of incoming requests over the CORBA protocol. The vulnerability enables an unauthenticated attacker with standard network access to bypass authentication mechanisms entirely. By crafting specific malformed or specially designed packets sent via CORBA, an adversary can trigger unintended behavior within the application logic. This lack of proper input validation and authorization checks means that the software processes these malicious inputs as legitimate administrative commands. Consequently, the attacker gains a level of control equivalent to that of a system administrator, allowing them to execute arbitrary code, modify data structures, or disrupt service availability with minimal effort.
The operational impact of this vulnerability is severe, characterized by a CVSS 3.1 Base Score of 9.8 out of 10. This high score reflects the full compromise of confidentiality, integrity, and availability. An attacker who successfully exploits this flaw can take complete control of the Oracle Reports Developer instance. This takeover facilitates unauthorized access to sensitive business intelligence data, potential modification or deletion of critical reports and configurations, and the ability to use the compromised server as a pivot point for further attacks against other systems within the corporate network. The absence of required authentication significantly lowers the barrier to entry, making this vulnerability highly attractive to automated scanning tools and opportunistic attackers seeking quick access to vulnerable infrastructure.
In terms of industry standard classifications, this flaw aligns with CWE-287, which denotes Improper Authentication, as well as CWE-94, describing Code Injection vulnerabilities resulting from insufficient control over user-supplied data. Furthermore, the exploitation method maps directly to MITRE ATT&CK techniques related to Remote Services and specifically CORBA-based attacks, such as T1563 or specific entries under lateral movement if used within a broader campaign. The network-accessible nature of the exploit places it firmly in the initial access phase of an attack lifecycle, allowing adversaries to establish a foothold without needing social engineering or physical proximity.
Mitigation strategies must prioritize immediate remediation due to the high severity and ease of exploitation. Oracle has likely released patches addressing this specific issue within subsequent updates for Fusion Middleware 14.1.2.x. Organizations should apply these security updates immediately to close the authentication bypass gap. In environments where patching is not instantly feasible, network-level controls are essential. Implementing strict firewall rules that restrict access to the CORBA ports used by Oracle Reports Developer solely to trusted internal IP addresses can significantly reduce the attack surface. Additionally, deploying intrusion detection systems configured to detect anomalous CORBA traffic patterns may provide early warning of exploitation attempts. Regular vulnerability scanning and penetration testing should be conducted to ensure no other unpatched services remain exposed on the network perimeter.