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Oracle E-Business Suite EUVDEUVD-2026-106397

| CVE-2026-87356 HIGH
Information Exposure (CWE-200)
2026-10-20 secalert_us@oracle.com GHSA-j497-qpvm-xxxj
7.8
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-priv local logon to EBS host
  2. Exploit
    Abuse Valid Session flaw in Applications Platform Engineering
  3. Impact
    Achieve full component takeover (C/I/A impact)

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

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

Exploitation Conditions

Exploitation requires the attacker to already possess an authenticated low-privileged logon (PR:L) to the infrastructure/host on which the Applications Platform Engineering component of Oracle E-Business Suite executes, and the installed version must fall within 12.2.3 through 12.2.15. Attack complexity is low and no user interaction is needed (AC:L/UI:N), but the AV:L vector means there is no remote network path - the single biggest limiting factor is the prerequisite of local authenticated access to the EBS server, which confines realistic exploitation to insiders or to attackers who have already gained a foothold on the host.

Impact

The input CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, base 7.8 HIGH) describes a locally exploitable flaw requiring an already-authenticated low-privileged account on the host where Applications Platform Engineering runs, with low attack complexity and no user interaction, yielding full confidentiality, integrity and availability loss (component takeover). This is an authenticated local privilege-escalation / component-compromise issue, NOT a remotely reachable, unauthenticated vulnerability - the AV:L vector is the single most important risk-limiting signal and should temper the otherwise-high 7.8 score. No EPSS score, no CISA KEV listing, and no public POC were supplied, so there is no evidence of active or likely-imminent exploitation; the high CVSS is driven by impact (C/I/A all High) rather than by ease of remote reach. No SSVC decision data was provided. Net: a genuine priority for Oracle E-Business Suite operators to patch in the normal CPU cycle, but it is not a drop-everything, internet-facing emergency - an attacker must first obtain local authenticated access. CONFLICT TO NOTE: the input Tag 'Information Disclosure' understates the vulnerability, which the description and CVSS (I:H/A:H) characterize as a full takeover, not mere disclosure - treat the impact as full compromise.

Exploit ScenarioDerived

A low-privileged user who already has an authenticated local logon to the server hosting Oracle E-Business Suite's Applications Platform Engineering component abuses a flaw in the Valid Session handling to escalate to full control of that component. Because AC:L/UI:N, the attacker needs no victim interaction and no special timing once local access is held. No public exploit code was identified at time of analysis, so this would require attacker-developed tooling or internal knowledge.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Takeover of the Applications Platform Engineering component in Oracle E-Business Suite 12.2.3 through 12.2.15 is possible for an attacker who already holds a low-privileged local logon on the EBS host. The flaw sits in the 'Valid Session' component, is low-complexity with no user interaction, and yields high confidentiality, integrity, and availability impact (CVSS 7.8). Exploitation is gated by the AV:L/PR:L prerequisites, and no public exploit code was identified at time of analysis.

RemediationAI

Apply the Oracle October 2026 Critical Patch Update referenced at https://www.oracle.com/security-alerts/cpuoct2026.html, which is the vendor's remediation vehicle for E-Business Suite 12.2.3 through 12.2.15; the input data does not specify an exact patched build number, so confirm the fixed version in the advisory before upgrading. Because exploitation requires a low-privileged local logon on the EBS host, prioritize compensating controls that shrink that prerequisite: restrict interactive and SSH access to EBS application servers to named administrators via host firewalls or jump hosts, remove or disable unnecessary local OS accounts, and enforce least privilege on EBS application accounts. The trade-off is that tighter host access controls can impede legitimate operations and break automated jobs that log on locally, so map service accounts before restricting. Additionally, monitor EBS and OS logs for unexpected session reuse, privilege changes, and anomalous local authentication on 12.2.x hosts, and invalidate active sessions during patching, which forces legitimate users to re-authenticate.

Affected VersionsENISA

Applications Platform Engineering 12.2.3 ≤12.2.15

Affected Packages

euvd applications_platform_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.

Technical ContextAI · show details

Oracle E-Business Suite is Oracle's integrated enterprise resource planning and business application stack; Applications Platform Engineering is one of its underlying platform technology components, and 'Valid Session' is the specific subcomponent named in the advisory. The CVSS 3.1 vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H places the attack at the host level: there is no network path, and the attacker must already possess an authenticated low-privileged account on the infrastructure where the component executes, which confines realistic exploitation to insiders or to attackers who have already established a foothold on the EBS server. The source data assigns no CWE, but the 'Valid Session' label and the PR:L-to-full-takeover progression point to a session-state validation or authorization weakness that lets a low-privileged authenticated user operate beyond their intended privilege boundary. Scope is unchanged (S:U), so the impact is confined to the Applications Platform Engineering component rather than the host operating system, although the C/I/A ratings are all High. No CPE strings were supplied, so the affected platform identification rests on the vendor's 12.2.3 through 12.2.15 version range.

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Severity by source

Vendor (oracle) PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 7.8 HIGH

Description states low-privileged attacker with local logon (AV:L/PR:L), no user interaction, and full component takeover, giving C:H/I:H/A:H with unchanged scope.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Applications Platform Engineering product of Oracle E-Business Suite (component: Valid Session). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Applications Platform Engineering executes to compromise Applications Platform Engineering. Successful attacks of this vulnerability can result in takeover of Applications Platform Engineering. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Executive ViewAI

Why It Matters

Oracle E-Business Suite releases 12.2.3 through 12.2.15 carry a high-severity flaw in the 'Valid Session' component of the Applications Platform Engineering layer that lets anyone holding a low-privileged local account on an EBS host take effective control of that platform, with full loss of confidentiality, integrity and availability. Because EBS is normally the system of record for finance, procurement and HR, a successful compromise could expose or corrupt authoritative business data and interrupt transaction processing across the enterprise. Leadership should note that no vendor-released patch is identified at this time, so exposure is bounded only by how tightly local host logons to EBS servers are controlled and monitored.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: strictly limit and review local logon rights on all EBS 12.2.3-12.2.15 hosts, remove unnecessary and shared accounts, and enforce least privilege; broker all administrative access through privileged access management or a hardened jump host with session recording; enable and centrally monitor EBS and OS audit logging with alerts on anomalous Valid Session and authentication activity; restrict network access to EBS hosts to required application and administrative paths; increase review frequency of local account entitlements and apply host-level hardening baselines until an Oracle fix is available.

Threat Intelligence Overview

EPSS Score
0.2%
Top 96% exploitable
Prevalence
High
Oracle E-Business Suite is widely deployed ERP across large enterprises
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 HIGH
CISA KEV No
Public POC No
EPSS 0.2%
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
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
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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