Oracle Hyperion Infrastructure Technology EUVD-2026-61513

Exploitation requires unauthenticated network access to the Oracle Hyperion Infrastructure Technology Common Events component over HTTP, and active human interaction from a victim - most plausibly an authenticated Hyperion user who clicks a malicious link or visits an attacker-controlled page that initiates the crafted request. The attacker requires no credentials (PR:N) and the attack complexity is low (AC:L), meaning no race conditions or special environmental prerequisites apply beyond delivery. Exploitation is limited by: (1) the UI:R requirement - the attack cannot succeed through passive network access alone and depends on social engineering or malicious content delivery to a valid Hyperion user; (2) Oracle Hyperion is typically deployed in internal enterprise environments, reducing external attack surface for organizations that properly segment access to Hyperion HTTP interfaces; (3) the impact is scoped to data accessible by the victim's Hyperion session, limiting blast radius to what the targeted user account can reach. No non-default Hyperion configuration is indicated as a prerequisite based on available data.

The CVSS 3.1 base score of 8.2 (High) reflects a highly accessible attack - network-reachable, low complexity, no attacker privileges - tempered only by the UI:R requirement. The C:H impact is significant: complete read access to all Hyperion-accessible data, which in typical deployments includes sensitive financial plans, forecasts, and consolidation data. The I:L impact allows some unauthorized data modification. No availability impact is present. No EPSS score was included in the available intelligence, leaving probabilistic exploitation likelihood unquantifiable. The vulnerability is not currently listed in CISA's KEV catalog, and no proof-of-concept exploit has been identified - reducing immediate opportunistic risk. However, Oracle Hyperion environments are high-value targets for financially motivated threat actors and corporate espionage, making targeted social-engineering-driven delivery of the UI:R attack vector realistic. The Authentication Bypass tag elevates concern beyond what the CVSS vector alone conveys, as it implies the attacker effectively circumvents access controls without possessing credentials - a materially impactful outcome in an environment storing executive-level financial data.

An unauthenticated attacker crafts a malicious HTTP request or URL targeting the Oracle Hyperion Infrastructure Technology Common Events component and delivers it to an authenticated Hyperion user via a phishing email or a compromised internal page. When the victim interacts with the crafted content - fulfilling the UI:R requirement - the attacker's payload executes within the victim's authenticated session, crossing the scope boundary into other Hyperion products and granting the attacker complete read access to all financial data the victim can access, as well as limited data modification capability. No public exploit code has been identified at time of analysis.