CVE-2026-47004: Oracle Enterprise Manager Escalation Flaw

CVE-2026-47004 Overview

CVE-2026-47004 is a high-severity vulnerability in the Oracle Enterprise Manager Base Platform product within Oracle Enterprise Manager. The flaw resides in the Self Update Framework component and affects supported versions 13.5 and 24.1. A low-privileged attacker with network access over HTTPS can exploit this weakness to fully compromise the Oracle Enterprise Manager Base Platform. The vulnerability is classified under CWE-306: Missing Authentication for Critical Function. Oracle addressed the issue in the July 2026 Critical Patch Update.

Critical Impact
Successful exploitation results in complete takeover of Oracle Enterprise Manager Base Platform, compromising the confidentiality, integrity, and availability of managed enterprise infrastructure.

Affected Products

Oracle Enterprise Manager Base Platform version 13.5
Oracle Enterprise Manager Base Platform version 24.1
Self Update Framework component

Discovery Timeline

2026-07-21 - CVE-2026-47004 published to NVD
2026-07-23 - Last updated in NVD database

Technical Details for CVE-2026-47004

Vulnerability Analysis

The vulnerability affects the Self Update Framework, a subsystem in Oracle Enterprise Manager (OEM) responsible for retrieving and applying updates to management components, plug-ins, and metadata. An authenticated attacker with only low-level privileges can leverage the Self Update Framework over HTTPS to escalate access and take control of the OEM Base Platform. Because OEM manages databases, middleware, and infrastructure across the enterprise, a compromise of the platform provides adversaries with a pivot into downstream targets.

The issue is easily exploitable and produces high impact across confidentiality, integrity, and availability. The EPSS score is 0.447% with a percentile of 36.43, indicating current exploitation likelihood is moderate but non-trivial given the low attack complexity.

Root Cause

The underlying weakness maps to CWE-306: Missing Authentication for Critical Function. The Self Update Framework performs sensitive operations without enforcing sufficient authentication or authorization checks. An attacker who possesses low-privilege credentials can invoke functionality that should be restricted to administrative principals, enabling takeover of the platform.

Attack Vector

Exploitation requires network access to the OEM management endpoints over HTTPS and a valid low-privileged account. No user interaction is required, and the attack executes within a single security scope. The attacker interacts with the Self Update Framework interface to trigger the missing authentication path, then leverages that access to escalate control across the Base Platform. Refer to the Oracle Critical Patch Update Advisory - July 2026 for vendor-specific technical guidance.

Detection Methods for CVE-2026-47004

Indicators of Compromise

Unexpected requests to Self Update Framework endpoints originating from low-privileged OEM accounts.
Unauthorized modification of OEM plug-in metadata, update repositories, or self-update staging directories.
New or altered administrative accounts and role assignments within Oracle Enterprise Manager following Self Update activity.
Outbound HTTPS connections from OEM management servers to non-Oracle update sources.

Detection Strategies

Audit OEM sysman logs and repository tables for Self Update Framework invocations correlated with non-administrative user sessions.
Baseline expected update sources and alert on deviations in Self Update Framework fetch destinations.
Monitor privilege changes and job submissions occurring shortly after Self Update Framework activity.

Monitoring Recommendations

Forward OEM audit logs, WebLogic access logs, and OS-level logs from the OMS host into a centralized analytics platform for correlation.
Alert on authentication events for low-privilege accounts followed by administrative actions on the Base Platform.
Track file integrity on OEM binaries, plug-in directories, and configuration files under $ORACLE_HOME.

How to Mitigate CVE-2026-47004

Immediate Actions Required

Apply the July 2026 Oracle Critical Patch Update to Oracle Enterprise Manager 13.5 and 24.1 without delay.
Restrict network access to the OEM console and management endpoints to trusted administrative networks only.
Review and reduce the number of low-privileged OEM accounts, rotating credentials for any account with platform access.
Audit recent Self Update Framework activity for evidence of unauthorized invocation.

Patch Information

Oracle released the fix in the July 2026 Critical Patch Update. Administrators should consult the Oracle Critical Patch Update Advisory - July 2026 for patch downloads, prerequisites, and version-specific instructions covering Oracle Enterprise Manager Base Platform 13.5 and 24.1.

Workarounds

Where immediate patching is not feasible, block network access to the Self Update Framework endpoints at the perimeter or reverse proxy layer.
Enforce network segmentation so only jump hosts used by OEM administrators can reach the OMS.
Enable and review enhanced OEM auditing to capture all Self Update Framework operations pending patch deployment.

bash

# Example: restrict access to the OEM console using firewalld
# Allow only the administrative subnet to reach the OMS HTTPS port
firewall-cmd --permanent --zone=drop --add-source=0.0.0.0/0
firewall-cmd --permanent --zone=trusted --add-source=10.10.20.0/24
firewall-cmd --permanent --zone=trusted --add-port=7803/tcp
firewall-cmd --reload