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Oracle Enterprise Manager EUVDEUVD-2026-105941

| CVE-2026-101529 CRITICAL
2026-10-20 secalert_us@oracle.com GHSA-xrqj-932m-x8j7
9.9
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privilege EM account
  2. Delivery
    Reach Data Guard Management over HTTP
  3. Exploit
    Exploit component with crafted request
  4. Execution
    Take over OEM for Oracle Database
  5. Impact
    Pivot to managed databases (scope change)

Vulnerability Assessment

Exploitation Conditions

Exploitation requires a low-privileged authenticated account on Oracle Enterprise Manager for Oracle Database (CVSS PR:L) with network access to the HTTP interface of the Data Guard Management component; affected versions are 13.5 and 24.1. No user interaction is required and attack complexity is low (AC:L), so it works against standard deployments once an attacker has any low-privilege credential. The primary limiting factors are the need for that initial authenticated foothold and network reachability of the OEM web interface - exposure should be reduced if the console is not internet-facing and account access is tightly controlled. The scope change (S:C) means successful exploitation can impact products beyond OEM itself.

Impact

This is a genuine high priority, not a high-CVSS-but-low-risk issue. The vendor-supplied CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H, 9.9) describes network-reachable exploitation over HTTP with only low privileges, no user interaction, low attack complexity, a scope change, and full C/I/A impact resulting in takeover of Oracle Enterprise Manager for Oracle Database. Oracle explicitly notes the scope change can significantly impact additional products - meaning compromise of the management console can cascade to the databases and systems it manages. Countervailing signals: no EPSS probability was provided, the CVE is NOT on CISA KEV, and no public POC is referenced, so there is no public exploit identified at time of analysis and no evidence of active exploitation. The single reference is the Oracle October 2026 Critical Patch Update advisory. Net: the signals that are present (easy, remote, scope-changing, full takeover) all point to high real-world risk, but the exploitation-likelihood signals (EPSS/KEV/POC) are simply absent rather than low - this should be treated as high priority to patch while recognizing that active exploitation is unconfirmed.

Exploit ScenarioDerived

A low-privileged user with a valid Enterprise Manager account (or who has obtained one) sends crafted HTTP requests to the Data Guard Management component of OEM for Oracle Database. Because attack complexity is low and no user interaction is needed, the attacker escalates to full takeover of the OEM instance, and the scope change lets the impact extend to additional managed products. No public exploit code is identified at time of analysis.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.5% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Takeover of Oracle Enterprise Manager 13.5 and 24.1 is achievable by a low-privileged authenticated attacker with HTTP access to the Data Guard Management component. Exploitation requires only network reachability and a low-privilege account, yields high confidentiality, integrity and availability impact, and can affect additional products because of the CVSS scope change; no public exploit identified at time of analysis.

RemediationAI

Apply the Oracle Critical Patch Update fixes published in the October 2026 advisory (https://www.oracle.com/security-alerts/cpuoct2026.html); patch availability is indicated by the vendor advisory, but the provided data does not enumerate an exact patched build. Until patched, restrict HTTP access to the Oracle Enterprise Manager Data Guard Management interface to trusted management networks or VPNs and tightly limit low-privileged OEM accounts, accepting that this may disrupt legitimate remote administration workflows. Remove or disable unnecessary low-privilege accounts and monitor for unusual Data Guard Management actions; disabling the component entirely is the strongest workaround where it is not needed, but it removes Data Guard administration functionality.

Affected VersionsENISA

Oracle Enterprise Manager for Oracle Database 24.1
Oracle Enterprise Manager for Oracle Database 13.5

Affected Packages

euvd oracle_enterprise_manager_for_oracle_database no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Oracle Enterprise Manager for Oracle Database is an enterprise management console used to monitor and administer Oracle Database environments, including Data Guard configuration and standby management. This issue resides in the Data Guard Management component and is reachable over HTTP by a low-privileged authenticated user (CVSS PR:L) with low attack complexity and no user interaction. The provided data does not assign a CWE, so the precise implementation flaw class is not disclosed. The CVSS scope change (S:C) indicates that successful exploitation can cross a trust boundary and significantly impact products beyond Oracle Enterprise Manager itself; affected versions are 13.5 and 24.1. No public exploit identified at time of analysis.

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Severity by source

NVD PRIMARY 9.9 CRITICAL
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
vuln.today AI 9.9 CRITICAL

Remote HTTP exploitation needs a low-privilege account (PR:L), is easy (AC:L) with no interaction, and causes full takeover with cross-product impact, justifying S:C and C/I/A:H.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Vulnerability in the Oracle Enterprise Manager for Oracle Database product of Oracle Enterprise Manager (component: Data Guard Management). Supported versions that are affected are 13.5 and 24.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Enterprise Manager for Oracle Database. While the vulnerability is in Oracle Enterprise Manager for Oracle Database, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Enterprise Manager for Oracle Database. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

Executive ViewAI

Why It Matters

Oracle Enterprise Manager 13.5 and 24.1 carries a critical management-platform takeover risk through the Data Guard Management component, with potential impact extending to dependent products. Because this is an enterprise management plane, a compromise could disrupt monitoring, administration, and operational resilience across teams rather than affect a single system. No vendor-released patch identified at time of analysis, so leadership should prioritize exposure reduction and containment.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis; restrict HTTP access to the Data Guard Management component to trusted networks, enforce least privilege for Oracle Enterprise Manager accounts, segment management-plane access, monitor and alert on anomalous administrative activity, and maintain immutable backups.

Threat Intelligence Overview

EPSS Score
0.5%
Top 60% exploitable
Prevalence
Medium
Oracle's standard DB management console - common in Oracle shops, not universal
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.5%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Very High

Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +50
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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