CVE-2026-70750: Oracle Hyperion Privilege Escalation Flaw

CVE-2026-70750 Overview

CVE-2026-70750 is a local privilege escalation vulnerability affecting the Oracle Hyperion Financial Reporting product within Oracle Hyperion. The flaw resides in the Server component of version 11.2.25.0.000. A low-privileged attacker with logon access to the infrastructure where Oracle Hyperion Financial Reporting executes can exploit the vulnerability to fully compromise the product. Successful exploitation results in complete takeover of the Oracle Hyperion Financial Reporting instance, with high impact to confidentiality, integrity, and availability. Oracle addressed the issue in the Oracle Security Alert August 2026.

Critical Impact
A low-privileged local attacker can take over Oracle Hyperion Financial Reporting, gaining full read, write, and availability control over the reporting server.

Affected Products

Oracle Hyperion Financial Reporting
Oracle Hyperion Financial Reporting Server component
Oracle Hyperion Financial Reporting version 11.2.25.0.000

Discovery Timeline

2026-08-18 - CVE CVE-2026-70750 published to NVD
2026-08-18 - Oracle publishes the Oracle Security Alert covering the fix
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70750

Vulnerability Analysis

The vulnerability affects the Server component of Oracle Hyperion Financial Reporting 11.2.25.0.000. Exploitation requires local logon access to the infrastructure hosting the reporting server. Once the attacker holds any valid low-privileged account on that host, no user interaction is required to complete the attack. Successful exploitation escalates the attacker's control to the level of the Hyperion Financial Reporting service, leading to full takeover of the application and its stored financial data. Oracle classifies the outcome as compromise of confidentiality, integrity, and availability of the Hyperion Financial Reporting instance.

Root Cause

Oracle has not published detailed root-cause information for CVE-2026-70750. The advisory identifies the Server component of Oracle Hyperion Financial Reporting as the affected surface and confirms the fix is delivered through the August 2026 patch cycle. Refer to the Oracle Security Alert August 2026 for authoritative details on the underlying weakness and the specific fix.

Attack Vector

The attack vector is local. The attacker must first authenticate to the host running Oracle Hyperion Financial Reporting with low privileges, such as a standard operating system account. From that foothold, the attacker interacts with the reporting Server component to elevate control over the product. Because the attack is local and the scope is unchanged, exposure depends heavily on how tightly access to the Hyperion host is restricted. Shared administrative jump hosts and multi-tenant financial environments increase the practical risk. No public proof-of-concept or in-the-wild exploitation has been reported at the time of publication.

No verified exploit code is available. Refer to the vendor advisory for authoritative technical details.

Detection Methods for CVE-2026-70750

Indicators of Compromise

Unexpected process executions or child processes spawned by Oracle Hyperion Financial Reporting service accounts on the reporting host.
Modification of Hyperion Financial Reporting configuration files, binaries, or report templates outside of scheduled change windows.
Creation of new local accounts or privilege changes on the Hyperion server following interactive logons by non-administrative users.

Detection Strategies

Monitor interactive and remote logon events (Windows Event ID 4624 types 2, 3, 10) on Hyperion Financial Reporting hosts and correlate with subsequent process activity from the Hyperion service context.
Alert on file integrity changes to Hyperion Financial Reporting installation directories and configuration files.
Baseline normal process trees for the Hyperion Financial Reporting Server service and flag deviations, especially spawns of cmd.exe, powershell.exe, or scripting hosts.

Monitoring Recommendations

Forward Hyperion Financial Reporting host logs, application logs, and EDR telemetry into a centralized SIEM or data lake for correlation across identity, process, and file events.
Continuously review the list of local accounts authorized to log on to Hyperion infrastructure and enforce least privilege.
Track the patch state of Oracle Hyperion Financial Reporting 11.2.25.0.000 deployments to confirm the August 2026 update is applied.

How to Mitigate CVE-2026-70750

Immediate Actions Required

Apply the fix delivered in the Oracle Security Alert August 2026 to all Oracle Hyperion Financial Reporting 11.2.25.0.000 instances.
Inventory every host running Oracle Hyperion Financial Reporting and confirm patch coverage before returning them to production use.
Restrict interactive logon rights on Hyperion Financial Reporting servers to a minimal set of administrators.

Patch Information

Oracle addresses CVE-2026-70750 in the August 2026 security update for Oracle Hyperion. Administrators should download and apply the patch referenced in the Oracle Security Alert August 2026. Verify successful installation using Oracle's provided inventory and patch verification tools, and validate that Hyperion Financial Reporting services restart cleanly after patching.

Workarounds

Enforce strict access controls and multi-factor authentication for any account permitted to log on to Hyperion Financial Reporting infrastructure until patching is complete.
Segment Hyperion Financial Reporting servers on isolated management networks to limit which users and systems can establish local sessions.
Increase monitoring on Hyperion hosts for privilege escalation activity and anomalous local logons while patch deployment is in progress.

bash

# Configuration example
# Refer to the Oracle Security Alert August 2026 for exact patch identifiers
# https://www.oracle.com/security-alerts/cspuaug2026.html
#
# Example: verify installed Hyperion Financial Reporting version on the host
# Windows PowerShell
Get-ItemProperty "HKLM:\SOFTWARE\Oracle\Hyperion Solutions\Financial Reporting" |
  Select-Object DisplayName, DisplayVersion

# Restrict interactive logon on the Hyperion host (example)
secedit /export /cfg C:\policy.cfg
# Edit SeInteractiveLogonRight to only include approved admin group, then:
secedit /configure /db secedit.sdb /cfg C:\policy.cfg