CVE-2026-87248 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 high privileged attacker with logon to the infrastructure where Oracle Hyperion Financial Management executes to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in takeover of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/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, representing a critical risk to organizations relying on this enterprise performance management platform for financial reporting and analysis. This flaw is classified as an easily exploitable security weakness that requires high privileges and valid logon credentials to the infrastructure hosting the application. While the requirement for authentication might suggest limited exposure compared to remote unauthenticated attacks, the low complexity of exploitation combined with the ability to compromise the entire system makes this a severe threat vector. An attacker who has already gained access to the underlying operating system or network segment where Oracle Hyperion Financial Management executes can leverage this vulnerability to escalate their privileges and ultimately take full control of the application environment.
From a technical perspective, the flaw likely involves improper handling of security contexts or privilege boundaries within the application logic, allowing an authenticated high-privileged user to bypass intended restrictions. This aligns with common patterns found in CWE categories such as CWE-269 Improper Privilege Management or CWE-732 Incorrect Permission Assignment for Critical Resource. The vulnerability enables a lateral movement scenario where initial access through legitimate credentials is transformed into complete system compromise. Because the attacker must have logon capabilities to the infrastructure, this often implies that an insider threat or a compromised administrative account could be used as the entry point. Once exploited, the attacker gains the ability to manipulate data, exfiltrate sensitive financial information, and disrupt business operations without detection by standard perimeter defenses.
The operational impact of successfully exploiting this vulnerability is profound, encompassing all three pillars of the CIA triad: confidentiality, integrity, and availability. As indicated by the CVSS 3.1 base score of 6.7 with high impacts across these domains, an attacker can read confidential financial data, alter critical accounting records to mask fraud or manipulate reports, and render the system unavailable for legitimate users. In a financial management context, such compromises can lead to severe regulatory violations, significant financial loss, and reputational damage. The ability to take over Oracle Hyperion Financial Management means the attacker effectively controls the central hub of an organization's financial planning and analysis processes, potentially allowing them to inject malicious data into downstream reporting systems or ERP platforms that consume this information.
In terms of threat modeling, this vulnerability maps closely to MITRE ATT&CK techniques involving privilege escalation and lateral movement within enterprise environments. Specifically, it relates to T1078 Valid Accounts if the attacker uses stolen credentials, followed by T1068 Exploitation for Privilege Escalation or T1548 Abuse Elevation Control Mechanism depending on the specific mechanism used to bypass security controls. The attack path typically involves an adversary first compromising a high-privileged user account through phishing, credential stuffing, or other initial access vectors, and then executing this exploit locally on the server hosting the Hyperion application. This highlights the importance of strict identity governance and least privilege principles in securing enterprise applications.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary defense is to apply the latest security patches provided by Oracle as soon as they are available for version 11.2.26.0.000. Organizations should also implement strict access controls, ensuring that only essential personnel have high-privileged logon capabilities on servers hosting critical financial applications. Multi-factor authentication should be enforced for all administrative and privileged accounts to reduce the risk of credential compromise. Additionally, network segmentation can limit lateral movement by isolating Oracle Hyperion Financial Management servers from general corporate networks, restricting access to trusted management subnets only. Continuous monitoring using intrusion detection systems focused on anomalous privilege escalation activities within these specific server environments will help detect attempts to exploit this vulnerability before successful takeover occurs. Regular audits of user permissions and review of authentication logs are essential to maintaining a robust security posture against such insider or compromised-account threats.