CVE-2026-87324 in JD Edwards EnterpriseOne Tools
Summary
by MITRE • 10/21/2026
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Enterprise Infrastructure SEC). Supported versions that are affected are 9.2.0.0-9.2.26.5. Difficult to exploit vulnerability allows low privileged attacker with network access via JDENET to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of JD Edwards EnterpriseOne Tools as well as unauthorized update, insert or delete access to some of JD Edwards EnterpriseOne Tools accessible data and unauthorized read access to a subset of JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 6.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Enterprise Infrastructure SEC component of Oracle JD Edwards EnterpriseOne Tools, specifically affecting supported versions ranging from 9.2.0.0 through 9.2.26.5. This security flaw is characterized by a complex exploitation vector that requires an attacker to possess low-level privileges and network access via the JDENET protocol. The difficulty associated with exploiting this vulnerability suggests that while it may not be trivial for automated tools or unskilled actors, it remains accessible to determined adversaries who can navigate the specific conditions required for successful execution. The presence of such a flaw in enterprise infrastructure components highlights potential weaknesses in how authentication and input validation are handled within the JDENET communication layer, which serves as a critical interface for client-server interactions in the JD Edwards ecosystem.
From an operational perspective, the impact of this vulnerability is multifaceted, affecting all three pillars of the CIA triad: confidentiality, integrity, and availability. The primary consequence observed is the ability to cause a hang or frequent repeatable crash, leading to a complete denial of service for the JD Edwards EnterpriseOne Tools application. This disruption can halt business operations that rely on real-time data processing and user access. Beyond availability, the vulnerability also permits unauthorized modifications to accessible data, allowing attackers to insert, update, or delete records without proper authorization. Furthermore, it enables the reading of a subset of sensitive information stored within the system. These capabilities collectively degrade trust in the integrity of business transactions and expose proprietary or personal data to potential leakage, thereby compromising both operational continuity and regulatory compliance standing for organizations utilizing these affected versions.
The technical nature of this flaw aligns with common patterns found in network-facing applications where input sanitization or state management is insufficiently rigorous. The requirement for low privileges indicates that the vulnerability likely stems from a logic error or buffer handling issue rather than a complete failure of access controls, allowing authenticated but less privileged users to trigger unintended behaviors. This scenario maps closely to CWE-20 Improper Input Validation and potentially CWE-400 Uncontrolled Resource Consumption if the denial-of-service aspect is driven by resource exhaustion techniques such as memory leaks or infinite loops triggered by malformed requests. The network-based attack vector via JDENET places this vulnerability within the context of remote code execution prerequisites, although in this specific instance, it manifests primarily through service disruption and data manipulation rather than direct command execution on the underlying operating system.
In terms of threat modeling, this vulnerability can be associated with MITRE ATT&CK techniques related to Denial of Service and Data Manipulation. Specifically, it relates to T1499 Endpoint Denial of Service if the crash impacts local resources significantly, or more broadly to actions that disrupt service availability for other users. The unauthorized data access aspects correspond to T1005 Data from Local System or T1213 Data from Information Repositories, depending on how the JD Edwards database is structured and accessed. Attackers leveraging this flaw could potentially use the denial-of-service capability as a distraction while performing stealthier data exfiltration or modification tasks, exploiting the chaos caused by system instability to evade detection mechanisms that might otherwise flag anomalous but stable activity patterns.
Mitigation strategies must prioritize immediate patching of all affected JD Edwards EnterpriseOne Tools instances to version 9.2.26.5 or later where this issue has been resolved. Organizations should also implement network segmentation policies to restrict access to the JDENET protocol, ensuring that only authorized and trusted IP addresses can communicate with these services. Additionally, deploying intrusion detection systems capable of identifying patterns associated with resource exhaustion attacks can help mitigate the denial-of-service impact even before patches are applied. Regular audits of user privileges within the JD Edwards environment should be conducted to ensure that low-privileged accounts do not have unnecessary access to sensitive data or administrative functions, thereby reducing the attack surface available to potential exploiters. Continuous monitoring for unusual spikes in error logs or system crashes can also serve as an early warning indicator of exploitation attempts against this vulnerability.