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Oracle CMRO EUVDEUVD-2026-106212

| CVE-2026-101812 MEDIUM
Improper Access Control (CWE-284)
2026-10-20 secalert_us@oracle.com GHSA-f7x4-73f9-66vj
6.8
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
    Obtain low-privileged EBS account
  2. Delivery
    Reach CMRO LOV over HTTP
  3. Exploit
    Craft request meeting difficult preconditions
  4. Execution
    Bypass data authorization checks
  5. Impact
    Read or modify critical CMRO data

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

Exploitation targets the LOV (List-of-Values) component of Oracle Complex Maintenance, Repair and Overhaul within Oracle E-Business Suite versions 12.2.3 through 12.2.15, reachable over HTTP. Required prerequisites: the attacker must hold valid low-privileged EBS credentials (PR:L - not anonymous), and must satisfy high-complexity, attacker-independent conditions (AC:H), meaning the attack is explicitly described by Oracle as 'difficult to exploit' and is not reliably repeatable on demand. Limiting factors that reduce realistic risk: valid authentication is mandatory, no availability impact occurs (A:N), scope is unchanged (data limited to what CMRO can access), and exploitation is confined to deployments actually running the CMRO module (a specialized, not universally installed, EBS component). No user interaction is required (UI:N).

Impact

This is a moderate-severity issue (CVSS 3.1 base 6.8) whose signals point toward a real-but-not-urgent priority. The CVSS vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N indicates network-reachable exploitation over HTTP, but with HIGH attack complexity (AC:H) and a requirement for existing LOW privileges (PR:L) - i.e. an authenticated user, not an anonymous remote attacker. Impact is significant on the targeted module: high confidentiality and integrity loss (C:H/I:H) with no availability impact (A:N), and no scope change (S:U), so the blast radius is confined to Complex Maintenance, Repair and Overhaul-accessible data. There is NO CISA KEV listing and NO public exploit identified at time of analysis, so exploitation status is 'no public exploit identified at time of analysis.' No EPSS score was provided in the input, so exploitation probability cannot be quantified - this is a data gap, not evidence of low risk. The combination of AC:H and PR:L materially lowers real-world risk versus a headline 'network' CVE: an attacker needs valid EBS credentials AND must satisfy difficult, non-deterministic preconditions. The provided tag 'Authentication Bypass' CONFLICTS with the CVSS vector and description, which describe a low-privileged (already authenticated) attacker rather than an authentication bypass - treat that tag as suspect and verify against the Oracle CPU advisory. Net: a legitimate patch-in-normal-cycle item for EBS CMRO operators, not a drop-everything emergency.

Exploit ScenarioDerived

An attacker who already holds a low-privileged Oracle E-Business Suite account sends crafted HTTP requests to the Complex Maintenance, Repair and Overhaul List-of-Values (LOV) component, abusing it to read or alter critical CMRO data beyond their authorization. Because the flaw is rated difficult to exploit (AC:H), the attacker must satisfy specific non-deterministic conditions and likely multiple attempts to succeed. No public exploit code is known at time of analysis, so this would require original exploit development.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Authenticated low-privileged users can abuse high-complexity conditions in the LOV component of Oracle Complex Maintenance, Repair and Overhaul (CMRO) 12.2.3 through 12.2.15 to create, delete, modify, or read critical data reachable through CMRO over HTTP. The issue is rated CVSS 3.1 6.8 with high confidentiality and integrity impact but no availability impact, and exploitation requires valid EBS credentials plus attacker-independent conditions that Oracle describes as difficult to exploit. No public exploit identified at time of analysis.

RemediationAI

Patch available per vendor advisory: apply the Oracle Critical Patch Update October 2026 fixes for Oracle E-Business Suite CMRO versions 12.2.3 through 12.2.15; see https://www.oracle.com/security-alerts/cpuoct2026.html, and note that no separate exact CMRO patch version is supplied in the data. Until patching, reduce exposure by restricting HTTP access to CMRO/LOV functionality to trusted networks or users and by reviewing/removing unnecessary low-privileged CMRO accounts, noting that network restrictions may disrupt legitimate business users and privilege reductions may remove required application functions. Monitor for anomalous CMRO data creation, deletion, modification, or access by low-privileged accounts; given the assessed AC:H and lack of identified public exploit, these actions can be prioritized within a normal Oracle CPU cycle rather than an emergency response.

Affected VersionsENISA

Oracle Complex Maintenance, Repair and Overhaul 12.2.3 ≤12.2.15

Affected Packages

euvd oracle_complex_maintenance_repair_and_overhaul 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

The affected technology is Oracle E-Business Suite's Complex Maintenance, Repair and Overhaul module, specifically its List-of-Values (LOV) component exposed over HTTP. No CWE is assigned in the supplied data, so the root-cause class is not formally specified; the authoritative vector (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N) indicates a network-reachable flaw that requires low-privileged authentication and high-complexity prerequisites rather than anonymous access. Impact is scoped to data the CMRO module can access, with no availability effect; deployments that do not run CMRO are not exposed by this module-specific issue. The supplied tags mention Authentication Bypass, but the assessed PR:L requirement means valid low-privileged credentials are required and the issue should not be treated as pre-authentication.

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Severity by source

Vendor (oracle) PRIMARY 6.8 MEDIUM
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
vuln.today AI 6.8 MEDIUM

HTTP-reachable so AV:N; Oracle states difficult exploitation so AC:H; requires a low-privileged authenticated account so PR:L; high confidentiality and integrity data impact with no availability effect.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Complex Maintenance, Repair and Overhaul product of Oracle E-Business Suite (component: LOV). Supported versions that are affected are 12.2.3-12.2.15. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Complex Maintenance, Repair and Overhaul. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Complex Maintenance, Repair and Overhaul accessible data as well as unauthorized access to critical data or complete access to all Oracle Complex Maintenance, Repair and Overhaul accessible data. CVSS 3.1 Base Score 6.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N).

Threat Intelligence Overview

EPSS Score
0.3%
Top 79% exploitable
Prevalence
Low
niche EBS maintenance/repair module for asset-intensive industries, limited deployment
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 0.3%
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
No
Human Impact· derived
Medium

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
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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