CVE-2026-70711 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 logon to the infrastructure where Oracle Hyperion Calculation Manager executes to compromise Oracle Hyperion Calculation Manager. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Hyperion Calculation Manager accessible data as well as unauthorized read access to a subset of Oracle Hyperion Calculation Manager accessible data. CVSS 3.1 Base Score 3.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/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 classified as a difficult-to-exploit security weakness that permits an unauthenticated attacker to compromise the application's integrity and confidentiality under specific conditions. The core technical issue involves insufficient validation or access control mechanisms within the calculation management subsystem, which allows for unauthorized manipulation of data structures when certain user interactions are triggered. Although the vulnerability technically does not require prior authentication to initiate the attack vector, it relies heavily on social engineering tactics because successful exploitation necessitates human interaction from a victim other than the attacker. This characteristic significantly raises the barrier for automated or remote exploitation attempts, limiting the threat primarily to targeted attacks where an adversary can deceive a legitimate user into performing actions that trigger the underlying code flaw.
From a technical perspective, this vulnerability aligns with CWE-20 Improper Input Validation and potentially CWE-640 Weak Password Recovery Mechanism if the attack vector involves credential manipulation or session hijacking through social engineering. The operational impact is categorized by its effects on data confidentiality and integrity rather than availability. A successful exploit allows an attacker to gain unauthorized read access to a subset of accessible data, leading to potential information disclosure of sensitive financial models, calculations, or business logic stored within the Hyperion environment. Furthermore, the vulnerability permits unauthorized updates, inserts, or deletes against application data, which compromises the integrity of critical enterprise planning and performance management datasets. This dual impact on confidentiality and integrity underscores the severity of the flaw in environments where accurate financial reporting is paramount.
The CVSS 3.1 base score of 3.6 reflects these constraints through its vector string AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N. The Attack Vector Local indicates that the attacker must have physical or network proximity to the infrastructure hosting Oracle Hyperion Calculation Manager, ruling out purely remote internet-based attacks without an initial foothold. High Attack Complexity and Required User Interaction further emphasize that this is not a trivial exploit; it demands specific environmental conditions and victim participation. While the Scope remains Unchanged, meaning the impact is confined to the vulnerable component's data, the Localized Confidentiality and Integrity impacts are sufficient to cause significant business disruption if sensitive financial models or proprietary algorithms are exfiltrated or corrupted. In terms of ATT&CK mapping, this vulnerability facilitates techniques related to Initial Access via Spearphishing Attachment or Valid Accounts, followed by Data Exfiltration over C2 channels or Data Manipulation through legitimate application interfaces, depending on the specific exploitation path taken after user interaction.
Mitigation strategies must focus on both technical controls and administrative policies due to the social engineering aspect of this vulnerability. Oracle has likely released a patch for version 11.2.25.0.000 or subsequent updates that address the input validation flaws within the Security component; immediate application of these patches is the primary remediation step. In addition to patching, organizations should enforce strict network segmentation to limit access to Hyperion infrastructure to only authorized IP ranges and users, thereby reducing the attack surface for local exploitation attempts. Implementing multi-factor authentication can also mitigate risks associated with credential-based attacks if they are part of the interaction chain. Security awareness training is critical in this context, as employees must be educated to recognize suspicious requests or links that might trigger the vulnerability through human interaction. Regular audits of user permissions and monitoring for anomalous data access patterns will help detect potential exploitation attempts early, ensuring that any unauthorized read or write operations are identified before significant damage occurs.