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E Business Suite EUVDEUVD-2026-79736

| CVE-2026-83438 HIGH
Improper Access Control (CWE-284)
2026-09-15 secalert_us@oracle.com GHSA-8fgq-qmg8-5c9g
Authentication Bypass Oracle E Business Suite
8.2
CVSS 3.1 · Vendor: oracle
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Vulnerability Assessment

Weakness
CWE
CWE-284
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.

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This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Improper access control in the Internal Operations component of Oracle Engineering within Oracle E-Business Suite 12.2.3 through 12.2.15 allows an authenticated but low-privileged attacker reaching the application over HTTP to create, delete, modify, and read critical Engineering data, with the impact extending beyond the vulnerable component (CVSS scope change). Oracle rates it 8.2 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N), noting the attack is difficult to execute, so it is a targeted-risk issue rather than an opportunistic mass-exploitation one. No public exploit code is identified in the supplied intelligence, and the product is not listed in CISA KEV.

Affected VersionsENISA

Oracle Engineering 12.2.3 ≤12.2.15

Affected Packages

euvd oracle_engineering 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.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (oracle) PRIMARY 8.2 HIGH
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

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

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Engineering product of Oracle E-Business Suite (component: Internal Operations). 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 Engineering. While the vulnerability is in Oracle Engineering, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Engineering accessible data as well as unauthorized access to critical data or complete access to all Oracle Engineering accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N).

Threat Intelligence Overview

EPSS Score
0.3%
Top 78% exploitable
Data Quality
4 sources
Confidence: Medium
EUVD 🇯🇵JVN NVD CVE.org EPSS

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 0.3%
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· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

41
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +41
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

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

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Same weakness CWE-284 – Improper Access Control

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References

Advisories & patches
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-83438 REF https://www.oracle.com/security-alerts/cspusep2026.html

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