CVE-2026-87310 in JD Edwards EnterpriseOne Tools
Summary
by MITRE • 10/21/2026
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Database and Comm SEC). Supported versions that are affected are 9.2.0.0-9.2.26.5. Easily exploitable vulnerability allows low privileged attacker with network access via JDENET to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in takeover of JD Edwards EnterpriseOne Tools. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Database and Communications Security 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 its high severity, with a CVSS 3.1 base score of 8.8, indicating significant potential for compromise across confidentiality, integrity, and availability dimensions. The vulnerability stems from an implementation error that allows low-privileged attackers to exploit the system via network access through JDENET, which serves as the primary communication protocol for client-server interactions in this environment. Because the attack vector is remote and requires no user interaction, it presents a critical risk to organizations relying on these versions of EnterpriseOne for their core business operations.
From a technical perspective, the flaw enables an attacker with low-level privileges to escalate their access or execute unauthorized actions that lead to full control over the JD Edwards EnterpriseOne Tools environment. This typically involves manipulating how the system processes incoming network requests, potentially bypassing authentication checks or exploiting improper input validation within the communication layer. The ability of a low-privileged user to achieve complete takeover suggests weaknesses in privilege separation and session management mechanisms inherent in the affected software build. Such vulnerabilities often align with CWE classifications such as Improper Privilege Management or Broken Access Control, where the system fails to enforce sufficient restrictions on authenticated users regarding access to resources or functionality.
The operational impact of this vulnerability is severe due to its high availability score component. A successful exploitation does not merely result in data theft but can lead to a complete compromise of the application server's integrity and availability. Attackers could potentially inject malicious code, alter critical business configurations, delete essential database records, or render the system unavailable through denial-of-service conditions triggered by malformed requests. In an enterprise context where JD Edwards manages financials, supply chain, and human resources data, such a breach can disrupt daily operations, cause significant financial loss, and damage organizational reputation. The network-based nature of the attack means that any host with connectivity to the affected server within the same trust zone or exposed via firewall rules is potentially at risk.
Mitigation strategies must prioritize immediate patching if an official update from Oracle is available for versions below 9.2.26.5, as this represents the most effective remediation path. For environments where patching is not immediately feasible, network segmentation should be enforced to restrict JDENET traffic exclusively to authorized client IP addresses and application servers. Implementing strict firewall rules that limit inbound connections on relevant ports can significantly reduce the attack surface by preventing low-privileged external actors from reaching the vulnerable component. Additionally, deploying intrusion detection systems with signatures tailored to detect exploitation attempts against Oracle JD Edwards components can provide an additional layer of defense. Continuous monitoring for anomalous behavior originating from low-privilege accounts is also recommended to identify potential compromise early in the kill chain, aligning with ATT&CK techniques related to initial access and privilege escalation within enterprise application environments.