CVE-2026-62583 Overview
CVE-2026-62583 is an access control weakness [CWE-284] in the Oracle Hyperion Infrastructure Technology product, within the Installation and Configuration component. The affected release is version 11.2.25.0.000. Exploitation requires a high-privileged attacker with local logon access to the infrastructure where Oracle Hyperion Infrastructure Technology runs. Successful exploitation can lead to unauthorized modification of a subset of accessible data and a partial denial of service condition. Oracle disclosed the issue in its August 2026 Critical Patch Update. The vulnerability is difficult to exploit and does not permit data disclosure.
Critical Impact
Local, high-privileged attackers can achieve unauthorized update, insert, or delete access to a subset of Hyperion data and cause a partial denial of service.
Affected Products
- Oracle Hyperion Infrastructure Technology 11.2.25.0.000
- Installation and Configuration component
- Oracle Hyperion product family
Discovery Timeline
- 2026-08-18 - CVE-2026-62583 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-62583
Vulnerability Analysis
The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Improper access control [CWE-284] allows an authenticated actor with elevated privileges on the host to interact with resources beyond intended boundaries. The attack surface is local; the attacker must already possess logon access to the host executing Hyperion Infrastructure Technology. The impact is limited to integrity and availability, with no confidentiality effect. Oracle rates the flaw as difficult to exploit due to the required local access and high privilege prerequisites. The EPSS probability is 0.117%, reflecting a low likelihood of observed exploitation attempts.
Root Cause
The root cause is improper access control within installation and configuration routines. Privileged local actors can perform update, insert, or delete operations against Hyperion-accessible data that should be restricted. The same weakness enables partial disruption of service functionality.
Attack Vector
Exploitation requires local access (AV:L) and high privileges on the host. No user interaction is required. The attacker leverages their existing shell or session on the Hyperion server to invoke configuration or installation logic that lacks sufficient authorization enforcement. Because privileges must already be high, the vulnerability primarily represents a post-compromise integrity and availability risk rather than an initial-access vector.
No public proof-of-concept code is available. Refer to the Oracle Security Alert for authoritative technical details.
Detection Methods for CVE-2026-62583
Indicators of Compromise
- Unexpected modifications to Hyperion Infrastructure Technology configuration files or installation directories.
- Unauthorized changes to Hyperion-managed datasets performed by high-privileged local accounts.
- Service interruptions or partial availability degradation in Hyperion Infrastructure Technology components.
Detection Strategies
- Audit local logon events on Hyperion servers and correlate them with configuration or installation activity.
- Monitor privileged process execution against Hyperion binaries and installer utilities outside of change windows.
- Compare configuration file hashes against a known-good baseline to identify unauthorized writes.
Monitoring Recommendations
- Forward Hyperion application logs and OS audit logs to a centralized SIEM for correlation.
- Alert on privilege elevation events and administrative logons on hosts running Hyperion Infrastructure Technology 11.2.25.0.000.
- Track filesystem integrity for Hyperion installation and configuration paths.
How to Mitigate CVE-2026-62583
Immediate Actions Required
- Apply the fixes referenced in the Oracle August 2026 Critical Patch Update advisory for Hyperion Infrastructure Technology.
- Restrict interactive logon on Hyperion servers to a minimal set of vetted administrators.
- Enforce least privilege on service accounts used by Hyperion components.
Patch Information
Oracle addressed CVE-2026-62583 in the August 2026 Critical Patch Update. Administrators should review the Oracle Security Alert and apply the corresponding patch for Oracle Hyperion Infrastructure Technology 11.2.25.0.000 following Oracle's documented patching procedures.
Workarounds
- Limit and monitor high-privileged local access to Hyperion Infrastructure Technology hosts until patching is complete.
- Segment Hyperion servers from general administrative networks and require jump-host access.
- Implement filesystem integrity monitoring on installation and configuration directories.
# Configuration example
# Refer to the Oracle Security Alert for authoritative patch guidance:
# https://www.oracle.com/security-alerts/cspuaug2026.html
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
