CVE-2026-87220 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. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Hyperion Financial Management as well as unauthorized update, insert or delete access to some of Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 7.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/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, specifically affecting version 11.2.26.0.000 and potentially other supported releases in that lineage. This flaw represents a critical security deficiency that undermines the integrity and availability of the financial management platform by allowing unauthenticated actors to execute malicious actions against the system infrastructure. The nature of this vulnerability is particularly concerning because it does not require user interaction or complex social engineering tactics, relying instead on direct network access to exploit the underlying code defects within the application's handling of incoming requests or data structures.
The primary technical characteristic of this flaw is its low attack complexity and lack of authentication requirements. An attacker who gains physical access to the communication segment attached to the hardware hosting Oracle Hyperion Financial Management can initiate an exploitation sequence without needing valid credentials. This local network proximity requirement significantly narrows the pool of potential attackers compared to remote exploits, yet it remains a severe risk in environments where internal networks are not strictly segmented or where unauthorized devices can be connected to the same broadcast domain as the financial servers. The vulnerability allows for two distinct categories of malicious outcomes: denial of service and data integrity compromise.
Regarding availability impacts, successful exploitation enables an attacker to cause the Oracle Hyperion Financial Management application to hang or suffer from frequent, repeatable crashes that result in a complete denial of service condition. This disruption prevents authorized users from accessing critical financial reporting tools, budgeting applications, and consolidation processes, which can lead to significant operational downtime and potential financial losses due to delayed decision-making capabilities. The ability to trigger these crashes repeatedly suggests the vulnerability may involve resource exhaustion or state corruption within the application server's memory management or request processing logic.
In terms of integrity impacts, the vulnerability grants unauthorized actors the capability to update, insert, or delete data accessible by Oracle Hyperion Financial Management. This level of access allows for the manipulation of financial records, which is particularly dangerous in a financial management context where accuracy and auditability are paramount. An attacker could alter transactional data, modify user permissions, or inject malicious configurations that persist across system restarts if not properly mitigated. Such actions compromise the trustworthiness of the financial data generated by the platform, potentially leading to incorrect reporting, regulatory non-compliance, and reputational damage for the organization relying on these systems.
From a classification perspective, this vulnerability aligns with CWE-287, which describes Improper Authentication, as it allows unauthenticated access to sensitive functions. Furthermore, the ability to cause denial of service relates to CWE-400, Uncontrolled Resource Consumption, while the unauthorized data modification maps to CWE-916, Unauthorized Modification of Software Data Processed by Another Component. In terms of offensive security frameworks like MITRE ATT&CK, this vulnerability facilitates techniques associated with Initial Access via Local Network and subsequent Impact actions such as Service Stop or Data Manipulation. The CVSS 3.1 base score of 7.1 reflects the high availability impact combined with moderate integrity impact, weighted by the low attack complexity and absence of required privileges for the attacker within the local network segment.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Oracle should be consulted to apply any available patches or updates that address this specific security flaw in version 11.2.26.0.000. If patching is not immediately feasible, organizations should implement strict network segmentation policies to isolate the Hyperion Financial Management servers from general-purpose local networks. Access control lists on switches and routers can be configured to restrict communication with these servers only to authorized application clients and administrative workstations. Additionally, deploying intrusion detection systems capable of identifying anomalous traffic patterns associated with denial-of-service attacks or unauthorized data modification attempts can provide an additional layer of defense. Regular audits of physical network access points are also recommended to prevent the connection of unauthorized devices that could serve as a launchpad for such exploits.