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Oracle E-Business Suite EUVDEUVD-2026-33044

| CVE-2026-46821 HIGH
Improper Access Control (CWE-284)
2026-05-28 oracle GHSA-qwrj-x667-58f7
7.7
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
    Identify exposed EBS portal
  2. Delivery
    Register or reuse low-priv account
  3. Exploit
    Authenticate via HTTP
  4. Execution
    Send crafted request to Financials Common Modules
  5. Persist
    Bypass authorization across scope boundary
  6. Impact
    Exfiltrate confidential financial 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 requires (1) network HTTP reachability to the Oracle E-Business Suite middle tier hosting Financials Common Modules, (2) a valid low-privileged authenticated session on EBS 12.2.3 through 12.2.15 - which is trivially satisfied where external self-service portals such as iSupplier, iStore, or iReceivables allow account registration, and (3) the target deployment running an affected Financials Common Modules component. Limiting factors: no user interaction is needed, but authentication (PR:L) is required, so EBS instances that block external registration and isolate the middle tier behind VPN/IP allowlisting substantially raise the bar; impact is confidentiality-only (C:H/I:N/A:N), so the vulnerability cannot be used directly to modify ledgers or cause outages.

Impact

The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) describes network-reachable, low-complexity exploitation by an authenticated user with low privileges, yielding high confidentiality impact across a wider trust boundary (S:C) but no integrity or availability impact. There is no EPSS score, KEV listing, or POC indication in the supplied data, so signals suggest moderate but not urgent priority - confidentiality-only impact and the PR:L precondition reduce mass-exploitation likelihood. However, EBS deployments routinely host self-registered customer/supplier accounts (iSupplier, iStore, iReceivables) that satisfy 'low privileges' trivially, which makes the practical exposure higher than PR:L alone implies. KEV/EPSS/POC data is absent rather than confirmed-negative, so this assessment may shift once Oracle CPU follow-up intelligence appears.

Exploit ScenarioDerived

An attacker registers or compromises a low-privileged EBS account (for example via an internet-facing iSupplier or iStore portal), sends a crafted HTTP request to a Financials Common Modules endpoint, and abuses the authorization flaw to read confidential financial data belonging to other tenants/modules - with the scope change allowing exfiltration of data outside the Financials Common Modules trust boundary. No public exploit identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – May 28, 2026

Unauthorized data access in Oracle E-Business Suite's Financials Common Modules (versions 12.2.3 through 12.2.15) allows low-privileged remote attackers to read sensitive data via HTTP, with a scope change that extends impact beyond the vulnerable component to other Oracle products. The flaw carries a CVSS 3.1 base score of 7.7 reflecting high confidentiality impact, but no public exploit has been identified at time of analysis and the issue is not currently listed in CISA KEV.

RemediationAI

Apply the fix delivered in the Oracle Critical Patch Update of May 2026 referenced at https://www.oracle.com/security-alerts/cspumay2026.html; Oracle did not publish a discrete fix version in the data provided, so the remediation is 'Patch available per vendor advisory' via the CPU bundle for EBS 12.2.x. If immediate patching is not possible, restrict network reachability of the EBS middle tier and Financials Common Modules endpoints to trusted internal networks via WAF or reverse-proxy ACLs, disable or tightly scope self-registration for externally facing iSupplier/iStore/iReceivables portals to eliminate trivial PR:L footholds, and audit application-tier accounts with minimal privileges - noting these controls reduce attacker reach but will break legitimate external supplier/customer self-service flows.

Affected VersionsENISA

Oracle Financials Common Modules 12.2.3 ≤12.2.15

Affected Packages

euvd oracle_financials_common_modules 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 E-Business Suite (EBS) is Oracle's enterprise resource planning (ERP) platform; the Financials Common Modules provide shared services (UI, reporting, lookups) used across General Ledger, Payables, Receivables, and other financial modules. The CPE identifies oracle_financials_common_modules as the affected application within the EBS 12.2.x release line. No CWE was assigned, but the vendor-applied 'Authentication Bypass' tag combined with PR:L and a scope change suggests a flaw where an authenticated low-privileged session can reach functionality or data normally gated by stricter authorization, with the cross-component blast radius typical of EBS's shared servlet/middle-tier architecture.

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Severity by source

Vendor (oracle) PRIMARY 7.7 HIGH
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Primary rating from Vendor (oracle) · only source for this CVE.

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Financials Common Modules product of Oracle E-Business Suite (component: Common Components). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Financials Common Modules. While the vulnerability is in Oracle Financials Common Modules, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Financials Common Modules accessible data. CVSS 3.1 Base Score 7.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N).

Executive ViewAI

Why It Matters

Oracle E-Business Suite Financials modules (versions 12.2.3-12.2.15) contain a remote data access vulnerability allowing low-privileged users to extract sensitive financial data via HTTP, with scope change extending exposure to other Oracle products in the enterprise. This directly threatens confidentiality of non-public financial information and creates immediate compliance risk (SOX, data privacy regulations) and fraud exposure. Urgent mitigation and access controls are critical until vendor remediation becomes available.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: enforce strict access controls limiting low-privileged account permissions to Financials modules, disable remote HTTP access where operationally feasible, implement enhanced logging and alerting on sensitive financial data queries, require multi-factor authentication for any remaining remote access, and apply network segmentation isolating Financials modules from other Oracle applications pending patch availability.

Threat Intelligence Overview

EPSS Score
0.0%
Top 91% exploitable
Data Quality
5 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 HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
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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