CVE-2026-87186 in Hyperion Financial Management
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The supported version that is affected is 11.2.26.0.000. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Oracle Hyperion Financial Management executes to compromise Oracle Hyperion Financial Management. While the vulnerability is in Oracle Hyperion Financial Management, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 9.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Financial Management version 11.2.26.0.000, presenting a critical risk to organizations relying on this enterprise performance management platform for financial reporting and analysis. This flaw is characterized by an authentication bypass mechanism that permits unauthenticated actors to gain unauthorized access to the system. The attack vector requires physical proximity or network-level access to the communication segment directly attached to the hardware hosting the Oracle Hyperion Financial Management application. While the immediate target is the specific software instance, the severity of the compromise extends beyond the isolated product due to potential scope changes that can impact additional integrated systems within the enterprise infrastructure.
From a technical perspective, this vulnerability allows an attacker with local network access or physical connection to the hardware segment to exploit weaknesses in the authentication and authorization logic. The absence of required credentials for exploitation indicates a fundamental failure in enforcing identity verification protocols at the application layer before processing sensitive requests. This flaw aligns closely with CWE-287, which describes Improper Authentication, as well as CWE-306, Missing Authentication for Critical Function, where the system fails to properly verify user identities prior to executing security-critical operations. The ease of exploitation suggests that complex attack vectors or specific environmental conditions are not required beyond basic network connectivity to the affected segment, lowering the barrier to entry significantly for malicious actors operating within the local area network or physical perimeter.
The operational impact of this vulnerability is severe, as indicated by a CVSS 3.1 Base Score of 9.6, which denotes critical severity across all three core metrics: confidentiality, integrity, and availability. A successful exploitation results in complete takeover of the Oracle Hyperion Financial Management environment. This level of compromise allows attackers to read sensitive financial data, alter transaction records, or disrupt service operations entirely. In terms of cyber kill chain dynamics, this vulnerability facilitates initial access and privilege escalation without user interaction, mapping directly to MITRE ATT&CK techniques such as T1078 Valid Accounts if the attacker leverages default credentials, or more broadly to unauthorized access patterns that lead to data exfiltration and system manipulation. The scope change aspect implies that gaining control over this financial management tool could serve as a pivot point for lateral movement into other connected enterprise systems, amplifying the potential damage significantly beyond the immediate application layer.
Mitigation strategies must prioritize both technical controls and physical security measures given the nature of the attack vector. Since exploitation requires access to the physical communication segment attached to the hardware, restricting physical access to server rooms and network infrastructure is a primary defense line. Network segmentation should be implemented to isolate Oracle Hyperion Financial Management from general user networks, ensuring that only authorized management interfaces can communicate with the application servers. Additionally, organizations must apply all available security patches provided by Oracle for version 11.2.26.0.000 and subsequent updates if released. Implementing strict access control lists on network switches to limit connectivity to critical financial systems further reduces the attack surface. Regular audits of authentication logs and monitoring for anomalous login attempts can also aid in early detection of exploitation attempts, although prevention through patching and segmentation remains the most effective remediation path given the high severity and ease of exploitability described in this advisory.