CVE-2026-62558 Overview
CVE-2026-62558 affects the Oracle Hyperion Infrastructure Technology product within Oracle Hyperion. The vulnerability resides in the Installation and Configuration component of version 11.2.25.0.000. An unauthenticated attacker with logon access to the infrastructure hosting Oracle Hyperion Infrastructure Technology can exploit this flaw. Exploitation is difficult and requires user interaction from someone other than the attacker. Successful attacks compromise the confidentiality and integrity of data accessible to Oracle Hyperion Infrastructure Technology.
Critical Impact
Successful exploitation results in unauthorized creation, deletion, or modification of critical data, and unauthorized read access to all data accessible to Oracle Hyperion Infrastructure Technology.
Affected Products
- Oracle Hyperion Infrastructure Technology version 11.2.25.0.000
- Component: Installation and Configuration
- Product family: Oracle Hyperion
Discovery Timeline
- 2026-08-18 - CVE-2026-62558 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-62558
Vulnerability Analysis
The vulnerability affects the Installation and Configuration component of Oracle Hyperion Infrastructure Technology 11.2.25.0.000. Attackers must have local logon access to the infrastructure that runs the affected component. Exploitation is not straightforward and requires human interaction from a user other than the attacker.
A successful exploit chain allows the attacker to create, delete, or modify critical data. The attacker also gains complete read access to all data accessible to Oracle Hyperion Infrastructure Technology. Availability of the service is not impacted. The vulnerability requires both local access and user interaction, which raises the exploitation bar. However, the impact on confidentiality and integrity is significant once the conditions are met.
Root Cause
Oracle has not published detailed technical root cause information for this issue. The advisory identifies the flaw as residing in the Installation and Configuration component. Refer to the Oracle Security Alert for vendor guidance.
Attack Vector
The attack vector is local. An attacker must first obtain logon access to the infrastructure that hosts Oracle Hyperion Infrastructure Technology. The attacker must then induce a separate privileged or authorized user to perform an action that triggers the vulnerable code path. This combination of local access and required user interaction restricts opportunistic exploitation. Targeted attackers with prior footholds on the host and social engineering capability remain the most credible threat model.
See the Oracle Security Alert for the vendor's official technical details.
Detection Methods for CVE-2026-62558
Indicators of Compromise
- Unexpected modifications to Oracle Hyperion Infrastructure Technology configuration files or installation directories.
- Interactive logons to Hyperion infrastructure hosts from accounts that do not typically administer these systems.
- Anomalous execution of installation or configuration utilities outside scheduled maintenance windows.
Detection Strategies
- Monitor local logon events on hosts running Oracle Hyperion Infrastructure Technology 11.2.25.0.000 for unexpected user sessions.
- Baseline expected use of installation and configuration tooling, and alert on off-baseline invocation.
- Correlate user interaction events (file opens, script execution) with subsequent privileged actions against Hyperion data stores.
Monitoring Recommendations
- Enable audit logging for the Installation and Configuration component and forward events to a centralized SIEM.
- Track integrity of Hyperion configuration files with a file integrity monitoring solution.
- Review access to Hyperion-accessible datasets for unauthorized read, create, or modify operations.
How to Mitigate CVE-2026-62558
Immediate Actions Required
- Apply the patches published in the Oracle Security Alert for August 2026 as soon as testing allows.
- Restrict interactive and remote logon rights on hosts running Oracle Hyperion Infrastructure Technology to a minimal set of administrators.
- Enforce multi-factor authentication for all accounts with access to the Hyperion infrastructure.
Patch Information
Oracle addresses CVE-2026-62558 in its August 2026 security alert cycle. Administrators should consult the Oracle Security Alert for the specific patch bundle covering Oracle Hyperion Infrastructure Technology 11.2.25.0.000. Apply the patch in a staged manner across non-production and production environments.
Workarounds
- Limit local logon on Hyperion hosts to a small, audited group of administrators until patches are deployed.
- Educate administrators about social engineering scenarios that could satisfy the required user interaction step.
- Segment the Hyperion infrastructure from general-purpose administrative workstations to reduce lateral access.
# Configuration example
# Review and restrict interactive logon rights on the Hyperion host
# Windows example: audit members of the local "Administrators" and "Remote Desktop Users" groups
net localgroup Administrators
net localgroup "Remote Desktop Users"
# Linux example: list users authorized for interactive shells and sudo
getent passwd | awk -F: '$7 ~ /(bash|zsh|sh)$/ {print $1}'
getent group sudo wheel 2>/dev/null
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
