CVE-2026-61300: Oracle Enterprise Manager Escalation Flaw

CVE-2026-61300 Overview

CVE-2026-61300 affects the Oracle Enterprise Manager Base Platform, specifically the Agent Next Gen component. The vulnerability impacts supported versions 13.5 and 24.1. A low-privileged attacker with local logon access to the infrastructure running Oracle Enterprise Manager Base Platform can exploit this flaw to compromise the platform. Successful exploitation results in a full takeover of Oracle Enterprise Manager Base Platform, affecting confidentiality, integrity, and availability. Oracle disclosed the issue in its August 2026 security alert.

Critical Impact
Successful exploitation allows a locally authenticated attacker to fully take over the Oracle Enterprise Manager Base Platform, resulting in complete loss of confidentiality, integrity, and availability.

Affected Products

Oracle Enterprise Manager Base Platform version 13.5
Oracle Enterprise Manager Base Platform version 24.1
Component: Agent Next Gen

Discovery Timeline

2026-08-18 - CVE-2026-61300 published to the National Vulnerability Database (NVD)
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-61300

Vulnerability Analysis

The vulnerability resides in the Agent Next Gen component of Oracle Enterprise Manager Base Platform. It is classified as easily exploitable, requiring only local access with low privileges and no user interaction. An authenticated user on the host running the platform can leverage the flaw to gain full control of the Enterprise Manager Base Platform. Because Enterprise Manager is a centralized monitoring and administration tool for Oracle environments, takeover of this component can cascade into broader compromise of managed databases, middleware, and infrastructure assets.

Root Cause

Oracle has not published the specific technical root cause in its public advisory. The Oracle Security Alert confirms the vulnerability exists in the Agent Next Gen subcomponent of the Enterprise Manager Base Platform. Based on the CVSS metrics, the flaw allows privilege escalation or unauthorized modification within the Enterprise Manager process context from a local, authenticated session.

Attack Vector

Exploitation requires local access to the host executing Oracle Enterprise Manager Base Platform. The attacker must hold a valid low-privileged account on that infrastructure. No user interaction is needed, and the attack complexity is low. Once conditions are met, the attacker can escalate to compromise the platform itself, effectively achieving administrative control over Enterprise Manager operations.

No verified exploit code or public proof-of-concept has been released. Refer to the Oracle Security Alert for advisory details.

Detection Methods for CVE-2026-61300

Indicators of Compromise

Unexpected privilege changes or new administrative accounts within Oracle Enterprise Manager consoles
Unusual process execution originating from the Agent Next Gen binaries on Enterprise Manager hosts
Unauthorized modifications to Enterprise Manager configuration files, credentials stores, or agent registration data

Detection Strategies

Monitor local logon events on Enterprise Manager hosts, focusing on low-privileged accounts followed by activity targeting the Agent Next Gen component
Baseline normal Agent Next Gen process behavior and alert on deviations such as unexpected child processes or credential access
Correlate operating system audit logs with Enterprise Manager audit trails to identify lateral movement from managed targets back to the management server

Monitoring Recommendations

Enable and forward Oracle Enterprise Manager audit logs to a central SIEM for long-term retention and correlation
Track file integrity on Enterprise Manager installation directories, particularly Agent Next Gen configuration and binary paths
Review authentication logs on Enterprise Manager infrastructure for anomalous access patterns from service or maintenance accounts

How to Mitigate CVE-2026-61300

Immediate Actions Required

Apply the Oracle patch from the August 2026 Critical Patch Update to Enterprise Manager Base Platform 13.5 and 24.1 deployments
Restrict local logon access to Enterprise Manager infrastructure to a minimal set of administrative accounts
Audit existing accounts on Enterprise Manager hosts and remove or disable unused low-privileged accounts

Patch Information

Oracle addressed CVE-2026-61300 in its August 2026 security alert cycle. Administrators should consult the Oracle Security Alert for the exact patch identifier, prerequisites, and installation procedures applicable to their Enterprise Manager version.

Workarounds

Enforce strict access controls limiting who can authenticate to the operating system hosting Enterprise Manager Base Platform
Segment Enterprise Manager infrastructure onto isolated management networks accessible only to authorized administrators
Enable host-based logging and file integrity monitoring on Enterprise Manager servers until patches can be deployed

bash

# Review local accounts with logon access on the Enterprise Manager host (Linux example)
lastlog | awk '$2 != "**Never" {print $1, $4, $5, $6}'

# List sudoers and privileged group membership
getent group wheel sudo oinstall dba

# Restrict SSH access to authorized administrators only
# In /etc/ssh/sshd_config:
# AllowUsers oracle emadmin
# PermitRootLogin no
systemctl reload sshd