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Oracle Enterprise Manager EUVDEUVD-2026-46474

| CVE-2026-46985 MEDIUM
Improper Access Control (CWE-284)
2026-07-21 oracle GHSA-jjw5-pr5v-8cq2
5.3
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

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

  1. Access
    Gain HTTPS network access to OEM management segment
  2. Delivery
    Identify Agent Next Gen HTTPS endpoint on target host
  3. Exploit
    Send unauthenticated crafted HTTPS request
  4. Execution
    Bypass Agent Next Gen access controls
  5. Persist
    Read subset of OEM platform data
  6. Impact
    Use enumerated target data for follow-on reconnaissance

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

The vulnerability requires HTTPS network reachability to Oracle Enterprise Manager Base Platform version 13.5 or 24.1, specifically the Agent Next Gen component. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms no authentication, user interaction, elevated privileges, or special configuration settings are required - any unauthenticated attacker who can reach the Agent Next Gen HTTPS endpoint can attempt exploitation. The primary real-world limiting factor is network segmentation: OEM is typically deployed in internal enterprise management networks not directly reachable from the internet, restricting exploitability to internal network actors, VPN users, or attackers with prior lateral movement capability. Impact is bounded to read access of a subset of platform data - no code execution, configuration changes, or availability impact is possible through this vulnerability alone.

Impact

The CVSS 3.1 Medium score of 5.3 reflects limited but real-world meaningful risk. The vector AV:N/AC:L/PR:N/UI:N indicates trivially exploitable network access with zero prerequisites, which lowers the exploitation barrier to any network-reachable attacker. However, the scope is unchanged (S:U) and impact is strictly bounded to low confidentiality (C:L, I:N, A:N), meaning no data modification, service disruption, or privilege escalation is possible through this flaw alone. No EPSS data was provided in the input, and absence from CISA KEV means active exploitation has not been confirmed by US government threat intelligence. The 'Authentication Bypass' classification is the most concerning signal: it implies a structural access control gap rather than an incidental data leak, potentially enabling attackers to enumerate managed targets, configuration data, or monitoring metadata. In typical enterprise deployments, OEM is network-restricted to internal management segments, which meaningfully limits the exposed attack surface to internal actors, VPN users, or attackers with prior network foothold. Real-world priority should be elevated above raw CVSS for environments where OEM manages sensitive Oracle database infrastructure.

Exploit ScenarioDerived

An unauthenticated attacker with HTTPS access to the internal OEM infrastructure - whether an insider, a VPN-connected user, or a threat actor who has already gained network presence - sends a crafted HTTPS request directly to an Agent Next Gen endpoint, bypassing authentication controls. The attacker receives a subset of OEM platform data in response, potentially including information about monitored targets, agent configuration, or health metrics. This reconnaissance data could then be leveraged to identify high-value Oracle database targets for follow-on attacks. No public exploit code has been identified at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 22, 2026

Unauthenticated information disclosure in Oracle Enterprise Manager Base Platform's Agent Next Gen component permits remote attackers to read a subset of platform-accessible data over HTTPS without credentials. Versions 13.5 and 24.1 are confirmed affected per Oracle's Critical Patch Update for July 2026. No public exploit code has been identified and the vulnerability is not listed in CISA KEV at time of analysis, though the Authentication Bypass tag suggests a structural access control failure rather than a simple misconfiguration.

RemediationAI

Apply Oracle's Critical Patch Update for July 2026 by consulting the advisory at https://www.oracle.com/security-alerts/cpujul2026.html. Specific patched build numbers for versions 13.5 and 24.1 must be confirmed directly from the Oracle CPU advisory, as exact fix version numbers were not independently detailed in the available data. As compensating controls prior to patching, restrict network access to the OEM Agent Next Gen HTTPS interface using host-based firewall rules or network ACLs, limiting inbound connections to authorized OEM management server IP ranges only - this eliminates the unauthenticated network path without affecting OEM monitoring functionality for legitimate users. Additionally, deploy monitoring or IDS signatures to detect anomalous unauthenticated HTTPS requests targeting OEM agent ports, which would provide early warning of exploitation attempts. No functional side effects are expected from network access restriction in properly segmented OEM deployments.

Affected VersionsENISA

Oracle Enterprise Manager Base Platform 13.5
Oracle Enterprise Manager Base Platform 24.1

Affected Packages

euvd oracle_enterprise_manager_base_platform 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 (OEM) Base Platform is Oracle's flagship enterprise monitoring and lifecycle management platform, used to manage databases, middleware, and hosts at scale. The Agent Next Gen component is the next-generation monitoring agent responsible for collecting performance, configuration, and health metrics from managed targets and relaying them to the OEM management server over HTTPS. The CPE identifier cpe:2.3:a:oracle_corporation:oracle_enterprise_manager_base_platform:*:*:*:*:*:*:*:* confirms Oracle's own product line. The advisory tag 'Authentication Bypass' combined with the CVSS vector (PR:N, AV:N) indicates that one or more HTTPS endpoints exposed by Agent Next Gen fail to enforce access controls prior to returning data, consistent with CWE-306 (Missing Authentication for Critical Function) or CWE-284 (Improper Access Control). No CWE was formally assigned in the advisory, so root cause class is inferred from available signals.

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Severity by source

Vendor (oracle) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 5.3 MEDIUM

Network-accessible unauthenticated endpoint with low confidentiality read impact only; no integrity, availability, or scope change applies.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Agent Next Gen). Supported versions that are affected are 13.5 and 24.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle Enterprise Manager Base Platform. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Enterprise Manager Base Platform accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Threat Intelligence Overview

EPSS Score
0.2%
Top 85% exploitable
Prevalence
Medium
enterprise Oracle shop staple, uncommon outside large organizations
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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Yes
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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