Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain OS-level logon to Hyperion host
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DeliveryInvoke Security component without Oracle credentials
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ExploitBypass local authentication controls
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ExecutionRead all Calculation Manager accessible data
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ImpactAccess additional co-hosted Oracle EPM components via scope change
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires physical or remote OS-level logon to the server infrastructure where Oracle Hyperion Calculation Manager 11.2.25.0.000 is installed - this is the primary limiting factor and significantly reduces real-world exploitability in segmented environments. No Oracle Hyperion application credentials are required (PR:N in CVSS), but OS authentication to the host itself is a prerequisite. The specific configuration or feature within the Security component that is vulnerable is not identified in available data; it appears to affect the default installation of the stated version. Exploitation is limited to confidentiality impact only - integrity and availability of Calculation Manager are not affected. The scope change condition means additional Oracle EPM products co-located on the same host may also be impacted. |
| Impact | The CVSS 3.1 base score of 7.1 is driven primarily by the scope change and high confidentiality impact rather than by remote network reachability. The AV:L (Local) vector significantly constrains real-world risk: an attacker must first achieve OS-level access to the Hyperion server, which in well-segmented enterprise environments is a non-trivial prerequisite. AC:L and UI:N indicate that once local access is obtained, exploitation is straightforward. PR:N is technically accurate (no Oracle credentials needed) but somewhat misleading - the attacker still needs local infrastructure access, making this a post-compromise or insider threat scenario rather than a direct internet-facing attack. No EPSS data was provided in the source intelligence, and this CVE is not listed in the CISA KEV catalog, indicating no confirmed active exploitation. The authentication bypass nature combined with S:C means the blast radius within the EPM environment is significant if the attacker is already inside. Priority should be determined primarily by the organization's exposure model: servers accessible to untrusted users (e.g., shared infrastructure, VDI environments, weak segmentation) elevate risk considerably beyond what the CVSS base score alone suggests. |
| Exploit ScenarioDerived | An attacker with a foothold on the Oracle Hyperion server - whether via a compromised service account, a shared administrator workstation, or lateral movement following an initial breach elsewhere in the environment - logs onto the infrastructure without requiring Oracle Hyperion credentials. By exploiting the authentication bypass in the Security component, the attacker reads all financial planning data, business rules, and sensitive configuration accessible to Calculation Manager, then leverages the scope change to pivot and extract data from additional co-hosted Oracle EPM components. No public exploit code has been identified at time of analysis. |
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Alert meAnalysisAIv1 – Aug 19, 2026
Local authentication bypass in Oracle Hyperion Calculation Manager 11.2.25.0.000 allows an unauthenticated local attacker - one with OS-level logon to the host infrastructure but no Oracle application credentials - to compromise the Security component and gain complete unauthorized read access to all data accessible by Hyperion Calculation Manager. The scope change (S:C) in the CVSS vector confirms that successful exploitation can cascade to impact additional Oracle products co-hosted on the same infrastructure. No public exploit has been identified at time of analysis, and Oracle disclosed this through its August 2026 Critical Patch Update.
RemediationAI
Apply Oracle's Critical Patch Update for August 2026, which addresses this vulnerability in Oracle Hyperion Calculation Manager. The advisory is at https://www.oracle.com/security-alerts/cspuaug2026.html; an exact patched version number beyond 11.2.25.0.000 was not independently confirmed from the available data - consult Oracle Support for the precise patch artifact. If immediate patching is not possible, compensating controls should focus on restricting OS-level logon to the Hyperion server: remove all non-administrative local and remote interactive login rights for untrusted accounts, enforce strict least-privilege OS account management, and isolate the server on a network segment accessible only to authorized EPM administrators. Monitoring local logon events (Windows Event ID 4624 for interactive/RemoteInteractive logons, or equivalent) on the Hyperion host can provide detection coverage while the patch is staged. Note that OS-level access restrictions are a defense-in-depth measure, not a vulnerability fix, and do not address the underlying authentication bypass flaw.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Oracle Hyperion Calculation Manager is the business rules design and deployment module within the Oracle Hyperion Enterprise Performance Management (EPM) suite, responsible for building and managing calculation logic for financial planning and consolidation. The affected component is labeled 'Security,' and the vulnerability is tagged 'Authentication Bypass,' indicating a flaw in the product's local authentication or authorization enforcement mechanism - the CWE field is not populated, so the precise root cause class (e.g., improper authentication, missing access control check) cannot be confirmed from available data. The CVSS AV:L/PR:N combination is noteworthy: the attacker requires only OS-level logon to the infrastructure host (not a network-accessible exploit) but needs no Oracle application credentials, suggesting the Security component's access controls can be circumvented by any local OS user. The scope change flag (S:C) indicates that Oracle Hyperion EPM components share state or resources in a way that a breach of Calculation Manager can propagate to other suite components.
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Severity by source
AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Local vector confirmed by 'logon to infrastructure' prerequisite; PR:N because no Oracle app credentials needed; S:C due to EPM suite component spillover; no integrity or availability impact.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
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. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Hyperion Calculation Manager executes to compromise Oracle Hyperion Calculation Manager. While the vulnerability is in Oracle Hyperion Calculation Manager, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hyperion Calculation Manager accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).
Executive ViewAI
Oracle Hyperion Calculation Manager 11.2.25.0.000 contains an authentication bypass vulnerability enabling OS-level users to unauthorized read access of all Hyperion-managed data without requiring application credentials, with potential impact to co-hosted Oracle products. No vendor-released patch has been identified at time of analysis, and no public exploit code exists at this time. This unmitigated exposure threatens confidentiality of sensitive financial and operational data and creates compliance risk for affected organizations.
Implement OS-level access controls restricting Hyperion host logon to authorized system administrators only; deploy multi-factor authentication for all OS-level privileged access; establish host-based intrusion detection tuned to detect exploitation patterns; enable comprehensive audit logging of all OS authentication attempts and Hyperion data access; isolate Hyperion infrastructure from other co-hosted Oracle systems to prevent cascade compromise; conduct weekly reviews of OS access logs and privilege escalation events for anomalous activity.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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EUVD-2026-61660
GHSA-r7xf-43rf-mhrm
NVD
CVE.org
EPSS
Exploit-DB