CVE-2026-62545: Oracle Hyperion Privilege Escalation Flaw

CVE-2026-62545 Overview

CVE-2026-62545 affects the Oracle Hyperion Infrastructure Technology product within Oracle Hyperion, specifically the Installation and Configuration component. The supported version affected is 11.2.25.0.000. An unauthenticated attacker with access to the physical communication segment attached to the hardware running Oracle Hyperion Infrastructure Technology can compromise the product. Successful exploitation results in complete takeover of Oracle Hyperion Infrastructure Technology, with impacts on confidentiality, integrity, and availability. The vulnerability requires adjacent network access and high attack complexity, limiting the pool of potential attackers to those already positioned on the local network segment.

Critical Impact
Successful exploitation allows full takeover of Oracle Hyperion Infrastructure Technology by an unauthenticated attacker on the adjacent network.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Oracle Hyperion (Installation and Configuration component)
Deployments exposing the Hyperion host to shared physical network segments

Discovery Timeline

2026-08-18 - CVE-2026-62545 published to NVD
2026-08-18 - Oracle publishes Security Alert August 2026
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62545

Vulnerability Analysis

The flaw resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. An attacker requires no credentials and no user interaction to exploit it, but must reach the same physical communication segment as the target host. Successful attacks compromise confidentiality, integrity, and availability of the Hyperion Infrastructure Technology instance. Oracle documents the outcome as full takeover of the affected component. The high attack complexity indicates that exploitation depends on specific conditions outside the attacker's direct control, such as timing or configuration state on the local segment.

Root Cause

Oracle has not published detailed root cause information in the public advisory. The vulnerability is attributable to logic exposed by the Installation and Configuration component when reachable from the adjacent network. Refer to the Oracle Security Alert August 2026 for vendor-supplied context.

Attack Vector

Exploitation requires adjacent network access, meaning the attacker must sit on the same broadcast domain, VLAN, or physical segment as the Hyperion host. No authentication is required, and the attack does not require user interaction. Because privileges are not required and the impact scope is unchanged, a single successful exploit yields complete control of the Hyperion Infrastructure Technology process context. Environments that expose Hyperion services on flat networks or shared administrative VLANs face the highest exposure.

No public proof-of-concept or exploit code is available for CVE-2026-62545 at the time of publication. Technical details beyond the vendor advisory have not been released.

Detection Methods for CVE-2026-62545

Indicators of Compromise

Unexpected process execution or service restarts within the Oracle Hyperion Infrastructure Technology installation directory
New or modified configuration files under Hyperion Installation and Configuration paths outside change windows
Unauthenticated connections to Hyperion service ports originating from hosts on the same VLAN or physical segment

Detection Strategies

Monitor for anomalous administrative or installation activity against Hyperion services from adjacent hosts
Alert on modifications to Hyperion binaries, configuration files, and scheduled tasks
Correlate Layer 2 and Layer 3 traffic to Hyperion hosts against an approved administrative-source allowlist

Monitoring Recommendations

Forward Hyperion application, OS, and network logs to a centralized SIEM for correlation
Baseline normal Hyperion administrative traffic and alert on deviations, including new source MAC or IP addresses
Track outbound connections from Hyperion hosts to identify post-exploitation command-and-control or lateral movement

How to Mitigate CVE-2026-62545

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert August 2026 as soon as testing permits
Inventory all Oracle Hyperion Infrastructure Technology 11.2.25.0.000 deployments and prioritize those on shared network segments
Restrict Layer 2 access to Hyperion hosts by isolating them on dedicated, tightly controlled VLANs

Patch Information

Oracle addressed CVE-2026-62545 in the August 2026 security alert cycle. Administrators should consult the Oracle Security Alert August 2026 for the exact patch identifiers and installation instructions applicable to Oracle Hyperion Infrastructure Technology 11.2.25.0.000.

Workarounds

Segment Hyperion hosts onto dedicated VLANs with strict access control lists limiting adjacent-network exposure
Enforce port security, private VLANs, and 802.1X on switches serving Hyperion hosts to reduce adjacent-attacker positioning
Disable or firewall any Hyperion Installation and Configuration services not required for production operation

bash

# Example: restrict inbound traffic to Hyperion host to trusted admin subnet
iptables -A INPUT -s 10.20.30.0/24 -p tcp --dport 19000:19100 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000:19100 -j DROP