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Oracle E-Business Suite CVE-2026-87402

| EUVDEUVD-2026-106443 HIGH
Improper Access Control (CWE-284)
2026-10-20 secalert_us@oracle.com GHSA-8332-3xjq-wpjc
7.3
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
    Obtain low-privileged logon to EBS app tier
  2. Delivery
    Stage malicious input for AD Utilities
  3. Exploit
    DBA runs utility against tampered input
  4. Execution
    Code/action executes in Applications DBA context
  5. Impact
    Full takeover of Applications DBA

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

Requires the attacker to already have a low-privileged local logon account on the infrastructure/host where Oracle E-Business Suite Applications DBA (AD Utilities component) executes, affecting versions 12.2.3 through 12.2.15. Exploitation is NOT possible remotely or unauthenticated (AV:L, PR:L). A critical limiting factor is mandatory interaction (UI:R) by a different, higher-privileged person - typically a DBA/operator who must run or act upon the affected AD Utilities operation against attacker-influenced input. Exploitation is therefore gated by shared access to the application tier and by the timing/behavior of privileged operators, which meaningfully narrows realistic exploitation beyond the raw 7.3 score.

Impact

This is a genuine but context-dependent priority rather than a drop-everything emergency. The CVSS 3.1 base score of 7.3 (HIGH) is driven by full C/I/A impact (C:H/I:H/A:H) and low attack complexity, but it is tempered by three limiting metrics: the attack vector is LOCAL (AV:L), the attacker must already hold low-level privileges (PR:L) with logon access to the infrastructure where Applications DBA executes, and successful attacks require user interaction from a person other than the attacker (UI:R). These factors mean exploitation is not remote or unauthenticated and depends on a human (likely a privileged operator/DBA) being induced to perform an action. Exploitation status: no public exploit identified at time of analysis - the CVE is not listed in CISA KEV and no POC is referenced; only the Oracle October 2026 Critical Patch Update advisory is cited. No EPSS score was provided in the input, so probabilistic exploitation likelihood cannot be quantified here; absence of EPSS/KEV/POC signals suggests this is not currently seeing widespread opportunistic exploitation. CONFLICTING SIGNAL: the input Tags label this 'Information Disclosure,' yet the CVSS vector and description indicate full takeover (I:H/A:H, 'takeover of Applications DBA'), so the tag understates impact and should not be relied upon. The practical risk is highest for organizations where lower-privileged users share access to the EBS application tier and can stage content that a DBA will act upon.

Exploit ScenarioDerived

A low-privileged user with logon access to the Oracle E-Business Suite application-tier host plants or alters content (e.g., a file or input consumed by an AD Utilities operation), then waits for a DBA/operator to run that utility. When the privileged user interacts with the attacker-influenced input, the flaw escalates into full compromise of the Applications DBA context. No public exploit code is identified at time of analysis, so this scenario is inferred from the CVSS vector (AV:L, PR:L, UI:R) rather than a demonstrated POC.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Takeover of the Oracle E-Business Suite Applications DBA (AD Utilities) component is achievable by a low-privileged attacker who already holds a logon on the application-tier host running those utilities, in supported versions 12.2.3 through 12.2.15. The attacker cannot reach the flaw remotely or unauthenticated (AV:L/PR:L), and successful exploitation additionally depends on a different, higher-privileged person performing an action - typically a DBA or operator running an affected AD Utilities operation against attacker-influenced input (UI:R). Oracle rates the impact on confidentiality, integrity and availability as high (CVSS 3.1 base 7.3); no public exploit code or confirmed active exploitation was identified at time of analysis, and the practical risk is gated by shared access to the application tier and by privileged-operator behavior rather than being a drop-everything emergency.

RemediationAI

Apply the Oracle Critical Patch Update released via the October 2026 advisory at https://www.oracle.com/security-alerts/cpuoct2026.html - this is the vendor-released fix path for all affected versions 12.2.3 through 12.2.15; follow the advisory's patch matrix for the exact patch required at your version level and apply it during a standard AD Utilities maintenance window. Because the vector is local (AV:L) and requires a low-privileged logon plus operator interaction (PR:L/UI:R), the highest-value compensating controls are host-side: restrict interactive logon and SSH access to the EBS application tier to the minimum set of named administrators, remove shared or generic OS accounts, and audit APPL_TOP and administrative directory permissions so unprivileged users cannot write to locations the AD Utilities read (trade-off: tighter permissions can break adpatch, AutoConfig or clone operations until ownership is corrected, so validate in a non-production clone first). Until patched, also monitor and review privileged AD Utilities invocations (adadmin, adpatch, AutoConfig) and their input sources so an operator does not process attacker-influenced files, and keep the application-tier OS and database accounts on least privilege; note that these controls reduce but do not eliminate exposure, since they depend on operator discipline rather than on fixing the underlying code.

Affected VersionsENISA

Applications DBA 12.2.3 ≤12.2.15

Affected Packages

euvd applications_dba 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

Applications DBA (AD Utilities) is the Oracle E-Business Suite toolset used to patch, configure, clone and maintain the application tier - utilities such as adadmin, adpatch and the AutoConfig/AD maintenance scripts that run with elevated operating-system and database privileges (typically the applmgr account) over files in APPL_TOP and related administrative directories. The assessed vector (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) describes a local privilege-escalation pattern on a shared multi-user application-tier host: an attacker with an ordinary logon places or manipulates content that a more privileged operator later processes when running an AD Utilities operation, and the utility's trust in that input carries the attacker to full compromise of the component. No CWE identifier was supplied in the source data, but the root-cause class is consistent with improper privilege management and unsafe handling of attacker-influenceable input during privileged administrative operations. The UI:R prerequisite is the key structural constraint: exploitation is not a fire-and-forget action but is coupled to the timing and behavior of a DBA or operator, which narrows realistic exposure considerably below what the 7.3 score alone might suggest.

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Severity by source

Vendor (oracle) PRIMARY 7.3 HIGH
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
vuln.today AI 7.3 HIGH

Attacker needs local logon (AV:L) and low privileges (PR:L), another user must act (UI:R), and the outcome is full takeover of Applications DBA (C:H/I:H/A:H).

3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:P/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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Vulnerability in the Applications DBA product of Oracle E-Business Suite (component: AD Utilities). 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 DBA executes to compromise Applications DBA. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Applications DBA. CVSS 3.1 Base Score 7.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

Executive ViewAI

Why It Matters

Oracle E-Business Suite Applications DBA (AD Utilities) versions 12.2.3 through 12.2.15 carries a high-severity risk that could allow a low-privileged application-tier user, through a DBA or operator action, to compromise the component and affect confidentiality, integrity, and availability of EBS-supported business processes. The issue is not remotely reachable by an unauthenticated attacker and no public exploit identified at time of analysis, but leadership should care because EBS underpins finance, HR, and supply-chain operations and the exposure depends on shared application-tier access and privileged operator workflows that may not be consistently controlled.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting OS-level access to EBS application-tier hosts running AD Utilities to essential least-privileged accounts, enforcing strong authentication and session monitoring, requiring DBAs/operators to validate input before running AD Utilities and avoid processing untrusted files, enabling detailed auditing and file-integrity monitoring on AD Utilities, isolating app-tier hosts from unnecessary network paths, reviewing privileged DBA workflows with change approval, monitoring for anomalous local logons and AD Utilities executions, and engaging Oracle Support for patch or mitigation guidance with a plan to upgrade to a fixed 12.2.x release once available.

Threat Intelligence Overview

EPSS Score
0.1%
Top 97% exploitable
Prevalence
High
Oracle E-Business Suite is widely deployed enterprise ERP in 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 HIGH
CISA KEV No
Public POC No
EPSS 0.1%
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

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
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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