Hyperion Calculation Manager CVE-2026-62602

Exploitation requires the attacker to have physical or logical access to the same network communication segment (LAN, VLAN, or equivalent layer-2 boundary) as the host running Oracle Hyperion Calculation Manager 11.2.25.0.000 - remote internet-based exploitation is not possible given the AV:A vector. No authentication credentials are required (PR:N confirmed by CVSS vector). The AC:H rating indicates that exploitation is not straightforward and depends on conditions that are difficult to reliably reproduce, such as specific protocol states, timing windows, or undisclosed configuration requirements in the Security component. Limiting factors include: network adjacency requirement eliminates most external threat actors; high attack complexity reduces automated or opportunistic exploitation; no user interaction is required (UI:N), meaning exploitation does not depend on victim action once network access is achieved. The vulnerability does not affect availability (A:N), so denial-of-service is not a realistic attack outcome.

The CVSS 8.0 score reflects high confidentiality and integrity impact with a scope change, but real-world risk is materially constrained by the adjacent-network vector and high attack complexity. An attacker cannot exploit this remotely over the internet - they must be on the same physical LAN or network segment as the Hyperion server, significantly narrowing the realistic threat actor pool to insiders, compromised adjacent hosts, or attackers with prior network foothold. The AC:H rating adds a further hurdle, indicating that exploitation requires precise conditions that are not reliably reproducible. There is no CISA KEV listing and no public proof-of-concept code, so exploitation remains theoretical at time of analysis. EPSS data was not provided, so exploitation probability cannot be quantitatively assessed. Despite these constraints, the S:C and C:H/I:H combination means a successful attack carries serious consequences - even a mid-sized municipal IT team in swidnica running Hyperion on a flat network without proper segmentation should treat this as a meaningful risk warranting prompt patching and network isolation review. CVSS scores the theoretical maximum impact; the AV:A/AC:H combination substantially reduces the realistic exploitation probability relative to network-accessible, low-complexity vulnerabilities.

An attacker who has already established a presence on the same internal network segment as the Hyperion Calculation Manager server - whether through a compromised workstation, rogue device, or insider position - crafts specific network-layer requests that bypass authentication in the Security component. By satisfying the high-complexity exploitation conditions (precise timing, protocol state, or configuration targeting), the attacker gains unauthorized read and write access to all Hyperion-managed financial calculation data, and the scope change may allow them to laterally compromise other integrated Oracle EPM components on the same infrastructure. No public proof-of-concept currently exists, so this scenario requires non-trivial attacker skill.