CVE-2026-87176 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 network access via TCP to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Hyperion Financial Management accessible data as well as unauthorized access to critical data or complete access to all Oracle Hyperion Financial Management 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).
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Financial Management, specifically affecting version 11.2.26.0.000 and potentially other supported releases in that lineage. This flaw represents a critical security deficiency that permits unauthenticated attackers to compromise the integrity and confidentiality of the application environment. The attack vector is network-based via TCP, meaning that any entity with connectivity to the affected system can attempt exploitation without requiring prior authentication or user interaction. This characteristic significantly elevates the risk profile, as it removes common barriers such as valid credentials or social engineering prerequisites, allowing for remote code execution or data manipulation by malicious actors positioned anywhere on the accessible network segment.
The technical nature of this vulnerability aligns with CWE-287, which describes Improper Authentication, and potentially CWE-306, Missing Authentication for Critical Function, depending on the specific implementation flaw within the security module. The absence of adequate access control checks allows an attacker to bypass authentication mechanisms entirely or exploit a logic error that treats unauthenticated requests as privileged operations. This failure in the security boundary enables the adversary to interact with sensitive application functions that should be restricted to authorized users only. The high severity is further corroborated by its mapping to MITRE ATT&CK techniques, particularly T1078 Valid Accounts if credentials are stolen or bypassed through other means, but more critically T1190 Exploit Public-Facing Application given the network accessibility and lack of initial access requirements.
The operational impact of a successful exploitation is severe, encompassing both confidentiality and integrity violations as indicated by the CVSS 3.1 base score of 9.1. Attackers can achieve unauthorized creation, deletion, or modification of critical data within the Oracle Hyperion Financial Management system. This capability allows for the alteration of financial records, which could lead to significant fiscal discrepancies, regulatory non-compliance, and reputational damage. Furthermore, the vulnerability grants complete access to all accessible data in the environment, facilitating mass exfiltration of sensitive financial information, customer details, or proprietary business strategies. The availability impact is listed as None in the CVSS vector, suggesting that while data integrity and confidentiality are compromised, the system itself may remain operational during the attack, potentially allowing for prolonged undetected malicious activity.
Mitigation efforts must prioritize immediate patching to the latest supported version of Oracle Hyperion Financial Management where this security flaw has been addressed by vendor engineering. In scenarios where patching is not immediately feasible due to maintenance windows or compatibility concerns, network-level controls should be implemented to restrict access to the affected service ports exclusively from trusted IP ranges using firewalls or intrusion prevention systems. Additionally, deploying Web Application Firewalls with rulesets tuned for authentication bypass and injection attacks can provide a layer of defense against exploitation attempts. Continuous monitoring of system logs for anomalous unauthenticated requests targeting security endpoints is also recommended to detect potential probing activity early in the kill chain.