CVE-2026-87327 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 unauthenticated attacker with access to the physical communication segment attached to the hardware where the JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data as well as unauthorized update, insert or delete access to some of JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N).
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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 represents a significant risk to organizations relying on this enterprise resource planning platform for critical business operations. The core issue stems from insufficient authentication controls or improper validation mechanisms within the communication segment handling logic, which allows an attacker who has gained physical access to the network infrastructure hosting the application to bypass standard security boundaries. Unlike remote exploitation vectors that require complex setup and high skill levels, this vulnerability leverages local network proximity, making it particularly dangerous in environments where physical security of server rooms or data centers may be compromised or insufficiently monitored.
From a technical perspective, the flaw enables an unauthenticated attacker with access to the physical communication segment attached to the hardware executing JD Edwards EnterpriseOne Tools to compromise the system integrity and confidentiality. The attack vector is classified as adjacent network (AV:A), indicating that the attacker must have connectivity to the target's local area network or similar broadcast domain but does not need direct console access. Despite requiring a high level of complexity (AC:H) due likely to specific timing, sequence, or protocol manipulation requirements, the absence of any required privileges (PR:N) and user interaction (UI:N) significantly lowers the barrier for exploitation. This combination allows even attackers with limited technical expertise to potentially exploit the flaw if they can physically connect a malicious device to the network segment where the JD Edwards server resides.
The operational impact of this vulnerability is severe, primarily affecting data confidentiality and integrity while leaving availability largely unaffected according to the CVSS 3.1 scoring model which yields a base score of 5.9. Successful exploitation grants unauthorized access to critical business data stored within the EnterpriseOne database. This includes sensitive financial records, customer information, supply chain details, and other proprietary assets managed by the ERP system. Furthermore, the vulnerability permits unauthorized updates, inserts, or deletes against accessible data sets. This capability allows an attacker not only to steal information but also to corrupt it, potentially leading to significant operational disruptions, regulatory non-compliance, and financial loss due to manipulated transactional records or destroyed audit trails.
In terms of industry standard classifications, this vulnerability aligns with CWE-287 Improper Authentication, as the system fails to adequately verify the identity of entities attempting to access resources over the network segment. Additionally, it relates to CWE-359 Create Externally-Controlled Send Socket Address if the flaw involves manipulating socket connections from adjacent networks. From a tactical perspective, this falls under MITRE ATT&CK technique T1046 Network Service Discovery or potentially T1078 Valid Accounts if the attacker leverages default credentials after gaining initial access, though the primary vector is unauthorized network-level interaction. The adjacency requirement places it in the context of insider threats or physical intrusion scenarios rather than remote web application attacks.
Mitigation strategies must focus on both technical controls and physical security enhancements. Since the attack requires physical proximity to the communication segment, securing the data center environment with strict access controls, surveillance, and network segmentation is paramount. Implementing VLANs to isolate JD Edwards servers from general office networks can limit the broadcast domain available to potential attackers. Additionally, deploying intrusion detection systems that monitor for anomalous traffic patterns on adjacent segments may help detect exploitation attempts in real-time. Oracle has released patches addressing this vulnerability; therefore, applying the latest security updates is the most effective remediation step. Organizations should also enforce strict network access control policies and consider implementing mutual TLS authentication where applicable to ensure that only authorized devices can communicate with JD Edwards services at the transport layer. Regular audits of physical security protocols alongside automated patch management processes are essential to maintaining a robust defense posture against such adjacent-network threats.