CVE-2026-62604 in Hyperion Calculation Manager
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Hyperion Calculation Manager product of Oracle Hyperion (component: Security). The supported version that is affected is 11.2.25.0.000. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Oracle Hyperion Calculation Manager executes to compromise Oracle Hyperion Calculation Manager. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Hyperion Calculation Manager accessible data. CVSS 3.1 Base Score 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Calculation Manager, specifically affecting version 11.2.25.0.000 and potentially other supported releases in that lineage. This flaw is characterized by a difficult-to-exploit nature that requires an attacker to have physical access to the communication segment attached to the hardware hosting the application. The attack vector is classified as Adjacent Network, indicating that the adversary must be on the same local network or broadcast domain as the target system but does not require direct interaction with the user interface of the vulnerable service. This constraint significantly limits the scope of potential attackers compared to remote exploitation vectors, yet it remains a critical concern for environments where physical security controls are insufficient or compromised.
From a technical perspective, this vulnerability allows an unauthenticated attacker to gain unauthorized read access to a subset of data accessible by Oracle Hyperion Calculation Manager. The lack of authentication requirement means that no valid credentials are needed to initiate the attack sequence, relying instead on protocol-level weaknesses or misconfigurations within the network stack handling requests from adjacent nodes. The impact is strictly limited to confidentiality, as indicated by the CVSS 3.1 base score of 3.1 with a Low severity rating for Confidentiality and no impact on Integrity or Availability. This suggests that while sensitive information such as calculation models, metadata, or configuration details could be exfiltrated, the attacker cannot modify existing data nor disrupt service operations through this specific vector.
The operational impact centers around the potential exposure of proprietary business logic and financial modeling structures stored within Hyperion Calculation Manager. Since these systems often contain critical enterprise resource planning inputs and forecasting algorithms, unauthorized access to even a subset of this data can lead to competitive disadvantage or strategic intelligence leakage for the affected organization. The requirement for physical proximity to the network segment implies that insider threats or attackers who have breached perimeter defenses to reach internal LAN segments are the primary risk profile. This aligns with common attack patterns where lateral movement is achieved through compromised endpoints on trusted networks, allowing adversaries to probe adjacent services without triggering external intrusion detection systems designed to monitor internet-facing traffic.
In terms of industry standard classifications, this vulnerability maps closely to CWE-287 Improper Authentication, as the system fails to require authentication for certain operations accessible via the network interface. Additionally, it relates to CWE-319 Cleartext Transmission of Sensitive Information if the data is transmitted without adequate encryption over that segment, although the primary flaw appears to be the lack of access control checks rather than just transmission security. From a tactical perspective within the MITRE ATT&CK framework, this scenario reflects techniques associated with Lateral Movement and potentially Data Staged or Collection phases depending on how the exfiltrated data is handled post-exploitation. The Adjacent Network vector corresponds to attack paths that leverage trust relationships between devices on the same local network segment.
Mitigation strategies should focus primarily on strict physical security controls for server rooms and network infrastructure locations where Hyperion Calculation Manager hosts reside. Implementing robust network segmentation using VLANs can isolate critical application servers from general user workstations, thereby reducing the pool of potential adjacent attackers. Access Control Lists (ACLs) on switches and routers should be configured to restrict traffic destined for the Hyperion management interfaces to only authorized administrative subnets. Furthermore, ensuring that all communication channels are encrypted via TLS prevents eavesdropping even if an attacker gains access to the segment, although this does not mitigate the authentication flaw itself. Regular auditing of network configurations and reviewing default or overly permissive security settings in Oracle Hyperion products is essential to close these gaps. Patching to the latest available version provided by Oracle may also address underlying implementation weaknesses that facilitate such adjacent attacks.