Description

Vulnerability in the Oracle Hyperion Financial Reporting product of Oracle Hyperion (component: Server). The supported version that is affected is 11.2.25.0.000. Easily exploitable vulnerability allows unauthenticated attacker with network access via RMI to compromise Oracle Hyperion Financial Reporting. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Hyperion Financial Reporting accessible data as well as unauthorized access to critical data or complete access to all Oracle Hyperion Financial Reporting accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.1",
  "pubDate": "2026-08-18T21:17:26.893Z",
  "pubdate": "2026-08-18T21:17:26.893Z",
  "executiveSummary": "An easily exploitable vulnerability exists within the Server component of the Oracle Hyperion Financial Reporting product, specifically affecting version 11.2.25.0.000. This security flaw allows an unauthenticated remote attacker with network access via the Remote Method Invocation protocol to compromise the underlying system. Successful exploitation of this vulnerability can lead to unauthorized creation, deletion, or modification of critical data, as well as unauthorized or complete access to all Oracle Hyperion Financial Reporting accessible data. The severity of this vulnerability is underscored by a CVSS 3.1 Base Score of 9.1, with high impacts on both confidentiality and integrity, though availability remains unaffected. The attack vector is network-based, requiring low attack complexity with no privileges or user interaction needed, presenting significant risk implications for organizations utilizing the affected software suite.",
  "technicalDetails": "The vulnerability resides in the Server component of Oracle Hyperion Financial Reporting version 11.2.25.0.000. The root cause stems from insecure handling of Remote Method Invocation (RMI) communications, which permits unauthenticated remote entities to interact with exposed service interfaces. The exploitation vector relies on network accessibility over the RMI protocol, allowing an external threat actor to bypass authentication mechanisms entirely due to the absence of required privileges and user interaction.\nThe attack flow begins when an unauthenticated attacker establishes a network connection to the vulnerable RMI endpoints exposed by the Oracle Hyperion Financial Reporting Server. By leveraging the low complexity attack vector, the attacker transmits crafted payloads directly via RMI to invoke remote methods on the server. Due to inadequate input validation and weak access controls within the RMI interface, the server executes the unauthorized method calls.\nPost-exploitation impact includes severe compromise of data integrity and confidentiality. The successful execution of malicious payloads grants the attacker unauthorized create, delete, and modify capabilities over critical application data repositories. Furthermore, the attacker gains unauthorized read access to complete datasets accessible by Oracle Hyperion Financial Reporting. The vulnerability operates with a scope of unchanged (S:U), indicating that the compromise is contained within the security context of the affected application component but nonetheless grants exhaustive data manipulation and retrieval privileges to the unauthorized remote actor."
}