CVE-2026-62539 Overview
CVE-2026-62539 is a critical vulnerability in the Oracle Hyperion Infrastructure Technology product, specifically within the Installation and Configuration component. The affected supported version is 11.2.25.0.000. An unauthenticated attacker with network access via HTTP can exploit this flaw to fully compromise Oracle Hyperion Infrastructure Technology. Successful exploitation results in complete takeover of the affected system, impacting confidentiality, integrity, and availability.
Critical Impact
Unauthenticated remote attackers can take over Oracle Hyperion Infrastructure Technology deployments over HTTP with low attack complexity and no user interaction.
Affected Products
- Oracle Hyperion Infrastructure Technology 11.2.25.0.000
- Component: Installation and Configuration
- Oracle Hyperion product family
Discovery Timeline
- 2026-08-18 - CVE-2026-62539 published to the National Vulnerability Database
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-62539
Vulnerability Analysis
The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Oracle's advisory classifies the flaw as easily exploitable over the network without authentication. The scope is unchanged, but the vulnerability yields high confidentiality, integrity, and availability impact on the target host. Attackers who succeed obtain control over the Hyperion Infrastructure Technology service.
EPSS data lists the exploit probability at 0.358% with a percentile of 29.069 as of 2026-08-20. No public proof-of-concept exploit is referenced in the enriched data, and the vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Root Cause
Oracle's advisory does not disclose implementation-level details for the flaw. Based on the CVSS metrics, the weakness allows an unauthenticated HTTP client to trigger logic within the Installation and Configuration component that leads to takeover. Consult the Oracle Security Alert for vendor-provided technical context.
Attack Vector
Exploitation requires only network reachability to the Hyperion HTTP interface. The attacker sends crafted HTTP traffic to the Installation and Configuration component. No credentials, prior foothold, or user interaction is needed. Because the attack is unauthenticated and low-complexity, internet-exposed Hyperion deployments face the highest risk.
No verified code example is available. See the Oracle Security Alert for vendor guidance.
Detection Methods for CVE-2026-62539
Indicators of Compromise
- Unexpected HTTP requests to Oracle Hyperion Infrastructure Technology endpoints from external or unusual internal sources
- New or modified files, scheduled tasks, or services on Hyperion middleware hosts following unauthenticated HTTP traffic
- Outbound network connections from Hyperion service accounts to unknown hosts
Detection Strategies
- Inspect web server and application logs for anomalous requests targeting the Installation and Configuration component
- Correlate authentication and HTTP access logs to identify unauthenticated actions that result in configuration changes
- Baseline process execution on Hyperion servers and alert on child processes spawned by the Hyperion service account
Monitoring Recommendations
- Enable verbose HTTP request logging on Hyperion front-end web tiers and forward logs to a centralized SIEM
- Monitor Hyperion host filesystems for changes to installation, configuration, and deployment directories
- Alert on network egress from Hyperion servers that deviates from documented integration patterns
How to Mitigate CVE-2026-62539
Immediate Actions Required
- Apply the fixes referenced in the Oracle Security Alert to all Oracle Hyperion Infrastructure Technology 11.2.25.0.000 deployments
- Restrict network access to Hyperion HTTP endpoints so only authorized management networks can reach them
- Audit Hyperion servers for signs of prior unauthenticated exploitation before patching
Patch Information
Oracle addresses this vulnerability in its August 2026 Critical Patch Update cycle. Administrators should review the Oracle Security Alert for patch identifiers, prerequisites, and installation instructions specific to Hyperion Infrastructure Technology 11.2.25.0.000.
Workarounds
- Place Hyperion HTTP interfaces behind a reverse proxy or web application firewall that enforces authentication and request filtering
- Segment Hyperion middleware hosts into a restricted network zone with strict ingress and egress controls
- Disable or firewall off the Installation and Configuration component from untrusted networks until patches are applied
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
