CVE-2026-91330 in JD Edwards EnterpriseOne Tools
Summary
by MITRE • 10/21/2026
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Installation Security). Supported versions that are affected are 9.2.0.0-9.2.26.5. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of JD Edwards EnterpriseOne Tools. CVSS 3.1 Base Score 3.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Installation Security component of Oracle JD Edwards EnterpriseOne Tools, specifically affecting versions ranging from 9.2.0.0 through 9.2.26.5. This security flaw is classified as an availability impact with a CVSS v3.1 base score of 3.3, indicating low severity but significant operational risk for targeted environments. The vulnerability allows for exploitation by attackers who possess low privileges and have established logon access to the underlying infrastructure where JD Edwards EnterpriseOne Tools executes. This prerequisite implies that while remote unauthenticated attacks are not possible, any user with basic system-level credentials can trigger the flaw without requiring additional social engineering or user interaction.
The technical nature of this vulnerability centers on a partial denial of service condition. Upon successful exploitation, an attacker can cause instability within the JD Edwards EnterpriseOne Tools environment, leading to degraded performance or temporary unavailability of specific services and functionalities associated with the installation security mechanisms. This does not result in data exfiltration or unauthorized modification of system integrity, but it disrupts business continuity by rendering critical enterprise resource planning tools inaccessible for a period. The partial nature of the denial of service suggests that while some functions may remain operational, core processes dependent on secure installation checks are compromised, creating gaps in administrative oversight and workflow efficiency.
From an industry standard perspective, this vulnerability aligns with CWE-400: Uncontrolled Resource Consumption, as the exploitation leads to resource exhaustion or state corruption within the application layer. In terms of offensive security frameworks such as MITRE ATT&CK, this activity corresponds to T1529: System Shutdown or Reboot and potentially T1499: Endpoint Denial of Service under the Impact tactic. The low attack complexity and lack of user interaction requirements make it a persistent threat for insiders or compromised accounts with minimal privileges who seek to disrupt operations rather than steal data.
Mitigation strategies should prioritize immediate patching to the latest supported version within the 9.2.x series, as Oracle typically addresses such availability issues in cumulative updates. Organizations must also enforce strict least-privilege principles across their infrastructure, ensuring that service accounts and user identities have only the minimum permissions necessary for their roles. Network segmentation can further limit lateral movement by isolating JD Edwards servers from general-purpose workstations where low-level compromise might occur. Additionally, implementing robust monitoring and alerting on system resource usage and authentication logs will help detect anomalous behavior indicative of exploitation attempts before significant operational disruption occurs. Regular audits of installed components against the supported version matrix are essential to maintain a secure posture for enterprise applications.