CVE-2026-87387 in JD Edwards EnterpriseOne Homebuilder
Summary
by MITRE • 10/21/2026
Vulnerability in the JD Edwards EnterpriseOne Homebuilder product of Oracle JD Edwards (component: Homebuilder Management). The supported version that is affected is 9.2. Easily exploitable vulnerability allows low privileged attacker with network access via JDENET to compromise JD Edwards EnterpriseOne Homebuilder. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all JD Edwards EnterpriseOne Homebuilder accessible data. CVSS 3.1 Base Score 6.5 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Homebuilder Management component of Oracle JD Edwards EnterpriseOne, specifically affecting version 9.2. This software suite is widely utilized by construction and real estate firms for managing complex project lifecycles, including cost estimation, contract administration, and resource allocation. The presence of a security flaw in this specific module introduces significant risk to organizations relying on the platform for critical business operations. The vulnerability allows an attacker with low privileges who has network access via JDENET, Oracle’s proprietary networking protocol used for client-server communication within the EnterpriseOne environment, to compromise the integrity of the system. This indicates that the attack vector is remote and does not require user interaction or complex social engineering tactics, making it a high-risk issue for any deployment exposed to internal networks where such low-privileged accounts exist.
The technical nature of this flaw centers on an authorization bypass or insufficient access control mechanism within the Homebuilder Management logic. While the exact code-level defect is not detailed in the summary, the ability to perform unauthorized creation, deletion, or modification of data suggests a failure in validating user permissions against requested actions at the application layer. An attacker leveraging JDENET can craft specific requests that exploit this gap, effectively elevating their capabilities beyond what was intended by system administrators. This aligns with common vulnerability classifications such as CWE-269, which covers Improper Privilege Management, and potentially CWE-862, Missing Authorization, depending on the precise implementation details of how access checks are enforced or bypassed within the Homebuilder module.
The operational impact of this vulnerability is severe due to its direct effect on data integrity. A successful exploitation allows an attacker to alter critical project data, delete essential records, or inject false information into financial and scheduling modules. In a construction management context, tampering with cost estimates can lead to significant financial losses, while modifying contract details could result in legal liabilities and disputes. Furthermore, the ability to delete data poses a risk of operational disruption, potentially halting ongoing projects if key documentation is removed. The CVSS 3.1 base score of 6.5 reflects this medium-to-high severity, driven primarily by the high impact on integrity with no direct impact on confidentiality or availability in the baseline scoring model. However, in practice, data deletion can indirectly cause denial of service conditions for business processes dependent on that data.
From a threat intelligence perspective, this vulnerability maps to MITRE ATT&CK techniques related to Data Manipulation and potentially Account Manipulation if the attacker uses the compromised access to create new backdoor accounts. The use of JDENET as the attack vector highlights the importance of securing internal communication channels within enterprise ERP environments. Attackers often target these protocols because they are frequently trusted by firewalls and network segmentation policies, assuming that traffic originating from or destined for internal servers is benign. This vulnerability exploits that trust assumption, allowing lateral movement or direct compromise if an attacker gains a foothold on the network with low-privileged credentials.
Mitigation strategies must focus on both immediate remediation and long-term architectural hardening. The primary defense is to apply the latest security patches provided by Oracle for JD Edwards EnterpriseOne version 9.2. Organizations should verify their patch levels against Oracle’s Critical Patch Update advisories to ensure this specific Homebuilder Management flaw is addressed. In addition to patching, network segmentation plays a crucial role in limiting exposure. Access to JDENET ports should be restricted strictly to authorized application servers and client workstations using firewall rules that deny traffic from untrusted subnets or general user networks where possible. Implementing strict access control policies for low-privileged accounts is also essential; these accounts should adhere to the principle of least privilege, ensuring they have only the minimum permissions necessary for their specific job functions. Regular auditing of JDENET logs can help detect anomalous activity indicative of exploitation attempts, allowing security teams to respond before significant data integrity issues occur.