EUVD-2026-61357
GHSA-x2j6-gmxj-462m
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Network HTTP vector confirmed; AC:H reflects Oracle's 'difficult to exploit' characterization; PR:N confirmed by description; full CIA takeover impact retained.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hyperion Calculation Manager. Successful attacks of this vulnerability can result in takeover of Oracle Hyperion Calculation Manager. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
AnalysisAI
Full takeover of Oracle Hyperion Calculation Manager version 11.2.25.0.000 is achievable by an unauthenticated remote attacker over HTTP, resulting in complete loss of confidentiality, integrity, and availability. The attack is classified as difficult to exploit (AC:H), meaning specific conditions must align, but no credentials or user interaction are required once those conditions are met. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The CVSS vector confirms PR:N - no credentials or authenticated session are required to attempt exploitation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 8.1 with vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H represents a high-severity, network-exploitable vulnerability with no authentication requirement, but the AC:H metric is a meaningful risk moderator - it indicates that exploitation is not trivially reliable and likely requires meeting race conditions, specific server state, or environmental prerequisites. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the patch released as part of Oracle's Critical Patch Update (CPU) for August 2026, available at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Oracle Hyperion Calculation Manager instances and determine which run version 11.2.25.0.000 and are accessible over HTTP externally or from untrusted networks. …
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Same weakness CWE-284 – Improper Access Control
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External POC / Exploit Code
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